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Mock_exam_1

Mock Exam 2

Mock_exam_1
Nov 21st, 2019
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  1. Started on Friday, 22 November 2019, 10:34 AM
  2. State Finished
  3. Completed on Friday, 22 November 2019, 10:38 AM
  4. Time taken 4 mins
  5. Grade 36.1 out of 100.0
  6. Question 1
  7. Correct
  8. Mark 1 out of 1
  9. Not flagged
  10. Question text
  11. In the PPP protocol, CHAP authentication involves exchange of three types of packets at different times. To match the Request packet with a Reply packet, each packet contains an Identifier field. In each authentication process, all the packets use the same Identifier information.
  12.  
  13. Select one:
  14. True
  15. False
  16. Feedback
  17. The correct answer is 'True'.
  18. Question 2
  19. Incorrect
  20. Mark 0 out of 1
  21. Not flagged
  22. Question text
  23. One of the significant features of the PPP protocol is the authentication function. With this function, the two ends of a link can negotiate with each other to use which authentication protocol and then perform authentication. A PPP connection is established only when the authentication is successful.
  24.  
  25. Select one:
  26. True
  27. False
  28. Feedback
  29. The correct answer is 'True'.
  30. Question 3
  31. Incorrect
  32. Mark 0 out of 1
  33. Not flagged
  34. Question text
  35. In the PPP protocol, the dynamic negotiation is the same as the static negotiation in the IPCP flow. That is, in either dynamic or static negotiation, allocation of IP addresses is completed after one Config-Request dialog.
  36. Select one:
  37. True
  38. False
  39. Feedback
  40. The correct answer is 'False'.
  41. Question 4
  42. Correct
  43. Mark 1 out of 1
  44. Not flagged
  45. Question text
  46. All the protocols in the standard HDLC protocol suite run on synchronous serial line.
  47.  
  48. Select one:
  49. True
  50. False
  51. Feedback
  52. The correct answer is 'True'.
  53. Question 5
  54. Correct
  55. Mark 1 out of 1
  56. Not flagged
  57. Question text
  58. The bus and star topologies, which are frequently used in a LAN, refer to the physical connection types rather than the logical structure of the network.
  59. Select one:
  60. True
  61. False
  62. Feedback
  63. The correct answer is 'False'.
  64. Question 6
  65. Correct
  66. Mark 1 out of 1
  67. Not flagged
  68. Question text
  69. On a port running frame relay, an MAP table corresponds to a logical port. Different logical ports have different MAP tables.
  70.  
  71. Select one:
  72. True
  73. False
  74. Feedback
  75. The correct answer is 'True'.
  76. Question 7
  77. Correct
  78. Mark 1 out of 1
  79. Not flagged
  80. Question text
  81. When you configure Frame Relay on Quidway routers, you can configure Inverse ARP instead of static address mapping because the function of Inverse ARP is to provide dynamic address mapping.
  82.  
  83. Select one:
  84. True
  85. False
  86. Feedback
  87. The correct answer is 'True'.
  88. Question 8
  89. Incorrect
  90. Mark 0 out of 1
  91. Not flagged
  92. Question text
  93. The 10.1.1.2 IP address in the returned result of the frame relay command represents the IP address of the local device.
  94.  
  95. [RTA\]dis fr map-info
  96.  
  97. Map Statistics for interface Serial0 (DTE)
  98.  
  99. DLCI = 100, IP INARP 10.1.1.2, Serial0
  100.  
  101. create time = 2007/06/04 17:34:59, status = ACTIVE
  102.  
  103. encapsulation = ietf, vlink = 20, broadcast
  104.  
  105. Select one:
  106. True
  107. False
  108. Feedback
  109. The correct answer is 'False'.
  110. Question 9
  111. Incorrect
  112. Mark 0 out of 1
  113. Not flagged
  114. Question text
  115. IP addresses are layer-specific. A Layer 3 network device does not necessarily store the IP address of every host; instead, it stores the IP address of each network segment. This reduces the entries in a routing table to a great extent while improving routing flexibility.
  116. Select one:
  117. True
  118. False
  119. Feedback
  120. The correct answer is 'True'.
  121. Question 10
  122. Incorrect
  123. Mark 0 out of 1
  124. Not flagged
  125. Question text
  126. VRP uses a component-based system architecture. It provides various functions and features in addition to application-based scalability and customization.
  127. Select one:
  128. True
  129. False
  130. Feedback
  131. The correct answer is 'True'.
  132. Question 11
  133. Correct
  134. Mark 1 out of 1
  135. Not flagged
  136. Question text
  137. When Access port receives the same data frame of VLAN ID and PVID, peel off the VLAN ID, and then forwarded directly.
  138. Select one:
  139. True
  140. False
  141. Feedback
  142. The correct answer is 'False'.
  143. Question 12
  144. Correct
  145. Mark 1 out of 1
  146. Not flagged
  147. Question text
  148. When an-image-file in the sender transmit via network using the application software.the TCP/IP encapsulation process pass through is: Date-Data Segment -Data Packet-Data Frame-Data Stream.
  149. Select one:
  150. True
  151. False
  152. Feedback
  153. The correct answer is 'True'.
  154. Question 13
  155. Incorrect
  156. Mark 0 out of 1
  157. Not flagged
  158. Question text
  159. Broadcast address is a special address that all the hosts are set as 1 in the network address , it also can be used as host addresses.
  160. Select one:
  161. True
  162. False
  163. Feedback
  164. The correct answer is 'False'.
  165. Question 14
  166. Correct
  167. Mark 1 out of 1
  168. Not flagged
  169. Question text
  170. Under the VRP interface,using the command delete or unreserved vrpcfg.zip can not delete files,you must empty the Recycle Bin to completely delete the file.
  171. Select one:
  172. True
  173. False
  174. Feedback
  175. The correct answer is 'False'.
  176. Question 15
  177. Incorrect
  178. Mark 0 out of 1
  179. Not flagged
  180. Question text
  181. Topology and configuration are shown as the following, so it can establish an Eth-Trunk logical l ink between two switches, and the LSW2 as the drive end.
  182. 38
  183. Select one:
  184. True
  185. False
  186. Feedback
  187. The correct answer is 'False'.
  188. Question 16
  189. Correct
  190. Mark 1 out of 1
  191. Not flagged
  192. Question text
  193. The election of root switch in STP is based on comparing the switch priority, but in RSTP, will both compare the switch priority and MAC address.
  194. Select one:
  195. True
  196. False
  197. Feedback
  198. The correct answer is 'False'.
  199. Question 17
  200. Incorrect
  201. Mark 0 out of 1
  202. Not flagged
  203. Question text
  204. On Huaweidevices £•if authorizing with AM authentication,when the remote server is not responding, it can authorize the device from the network side.
  205. Select one:
  206. True
  207. False
  208. Feedback
  209. The correct answer is 'True'.
  210. Question 18
  211. Correct
  212. Mark 1 out of 1
  213. Not flagged
  214. Question text
  215. The broadcast address of 192.168.1.0/25 subnet is 192.168.1.128.
  216. Select one:
  217. True
  218. False
  219. Feedback
  220. The correct answer is 'False'.
  221. Question 19
  222. Incorrect
  223. Mark 0 out of 1
  224. Not flagged
  225. Question text
  226. As shown,the running RIP between R1 and R2,R1 can not learn 2.2.2.2/32 or 2.0.0 0/8 route
  227. 45
  228. Select one:
  229. True
  230. False
  231. Feedback
  232. The correct answer is 'True'.
  233. Question 20
  234. Correct
  235. Mark 1 out of 1
  236. Not flagged
  237. Question text
  238. STP meanwhile in improving the reliability of the network, but also can solve the loop problem of switched network.
  239. Select one:
  240. True
  241. False
  242. Feedback
  243. The correct answer is 'True'.
  244. Question 21
  245. Incorrect
  246. Mark 0 out of 2
  247. Not flagged
  248. Question text
  249. (Single Choice) In a complete IP network, which of the following networks does a Layer 2 network under the service access control point belong to?
  250. Select one:
  251. a. Access network
  252. b. Backbone network
  253. c. Core network
  254. d. Metropolitan area network (MAN)
  255. Feedback
  256. The correct answer is: Access network
  257. Question 22
  258. Correct
  259. Mark 2 out of 2
  260. Not flagged
  261. Question text
  262. (Single Choice) On VRP platform, the command lines are classified into four levels in increasing priority: Visit level, Monitoring level, Configuration level, and Management level. At which level, the operator is permitted to configure service but is not permitted to operate the file system?
  263. Select one:
  264. a. Configuration level
  265. b. Monitoring level
  266. c. Management level
  267. d. Visit level
  268. Feedback
  269. The correct answer is: Configuration level
  270. Question 23
  271. Incorrect
  272. Mark 0 out of 2
  273. Not flagged
  274. Question text
  275. (Single Choice) Which of the following storage devices is used to store the startup configuration files in a router?
  276. Select one:
  277. a. NVRAM
  278. b. SDRAM
  279. c. Flash
  280. d. BootROM
  281. Feedback
  282. The correct answer is: NVRAM
  283. Question 24
  284. Incorrect
  285. Mark 0 out of 2
  286. Not flagged
  287. Question text
  288. (Single Choice) A server is linked to port interface G0/0/1 of a switch. The administrator wishes to allow only this server to be linked to this interface on the switch. Which method can be used to achieve this?
  289. Select one:
  290. a. It is not possible to enable a single device to be associated with an interface.
  291. b. Configure a static ARP entry using the server’s IP address and MAC address in the switch.
  292. c. Configure the default gateway of the switch to be the same as the server’s IP address.
  293. d. Configure a static MAC address binding entry of the server’s MAC address and the interface in the switch.
  294. Feedback
  295. The correct answer is: Configure a static MAC address binding entry of the server’s MAC address and the interface in the switch.
  296. Question 25
  297. Correct
  298. Mark 2 out of 2
  299. Not flagged
  300. Question text
  301. (Single Choice) Which attribute is selection of a root bridge based on when the spanning tree is calculated by the STP?
  302. Select one:
  303. a. Port ID
  304. b. Bridge ID
  305. c. Path Cost
  306. d. Port Cost
  307. Feedback
  308. The correct answer is: Bridge ID
  309. Question 26
  310. Incorrect
  311. Mark 0 out of 2
  312. Not flagged
  313. Question text
  314. (Single Choice) The standard for STP defined by IEEE is
  315. Select one:
  316. a. 802.1D
  317. b. 802.1Q
  318. c. 802.11b
  319. d. 802.3
  320. Feedback
  321. The correct answer is: 802.1D
  322. Question 27
  323. Correct
  324. Mark 2 out of 2
  325. Not flagged
  326. Question text
  327. (Single Choice) During STP calculation, STP selects a designated port and bridge for each network segment. In this selection process, STP first compares ( ) of the port connected to the network segment and selects the one with the lowest number.
  328. Select one:
  329. a. Root path cost
  330. b. Link priority
  331. c. Port MAC address
  332. d. Port identifier
  333. Feedback
  334. The correct answer is: Root path cost
  335. Question 28
  336. Incorrect
  337. Mark 0 out of 2
  338. Not flagged
  339. Question text
  340. (Single Choice) Which of the following descriptions about learning state in STP is incorrect?
  341. Select one:
  342. a. The port in learning state can forward part of the data packet
  343. b. The port in learning state can learn the source MAC address of data packet
  344. c. The port in learning state can receive and send BPDU
  345. d. The port in learning state can only learn the source MAC address but cannot transmit the data packet.
  346. Feedback
  347. The correct answer is: The port in learning state can forward part of the data packet
  348. Question 29
  349. Incorrect
  350. Mark 0 out of 2
  351. Not flagged
  352. Question text
  353. (Single Choice) As specified by the RSTP protocol, when a designated port fails, which type of port will function as a new designated port and enters the forwarding state without any delay?
  354. Select one:
  355. a. Edge Port
  356. b. Forwarding Port
  357. c. Alternate Port
  358. d. Backup Port
  359. Feedback
  360. The correct answer is: Backup Port
  361. Question 30
  362. Correct
  363. Mark 2 out of 2
  364. Not flagged
  365. Question text
  366. (Single Choice) Which of the following statements regarding routing protocol is correct?
  367. Select one:
  368. a. A method that defines the format and function of the fields for data packet
  369. b. A protocol that allows the data packets transmitted between hosts.
  370. c. A protocol that achieves route selection through an algorithm
  371. d. A protocol that defines the mode and time of the binding of MAC address and IP address
  372. Feedback
  373. The correct answer is: A protocol that achieves route selection through an algorithm
  374. Question 31
  375. Correct
  376. Mark 2 out of 2
  377. Not flagged
  378. Question text
  379. (Single Choice) Characterized by simple configuration and poor scalability, which of the following protocols is based on the Bellman-Ford algorithm and sends a complete routing table to an adjacent router at a certain interval?
  380. Select one:
  381. a. Interior gateway protocol
  382. b. Exterior gateway protocol
  383. c. Distance vector routing protocol
  384. d. Link-state routing protocol
  385. Feedback
  386. The correct answer is: Distance vector routing protocol
  387. Question 32
  388. Incorrect
  389. Mark 0 out of 2
  390. Not flagged
  391. Question text
  392. (Single Choice) What do we call the routes in the routing table that have the same cost to the same destination?
  393. Select one:
  394. a. Multipath routes
  395. b. Equivalent routes
  396. c. Sub-optimal routes
  397. d. Default routes
  398. Feedback
  399. The correct answer is: Equivalent routes
  400. Question 33
  401. Incorrect
  402. Mark 0 out of 2
  403. Not flagged
  404. Question text
  405. (Single Choice) Which of the following values is the default preference value for static route on the VRP platform?
  406. Select one:
  407. a. 60
  408. b. 100
  409. c. 0
  410. d. 20
  411. Feedback
  412. The correct answer is: 60
  413. Question 34
  414. Incorrect
  415. Mark 0 out of 2
  416. Not flagged
  417. Question text
  418. (Single Choice) The information about static routes can be viewed through a router. A backup route is identified as
  419. Select one:
  420. a. Inactive
  421. b. Backup
  422. c. Slave
  423. d. Bypass
  424. Feedback
  425. The correct answer is: Inactive
  426. Question 35
  427. Correct
  428. Mark 2 out of 2
  429. Not flagged
  430. Question text
  431. (Single Choice) Keyboard is used to input data only. Which of the following is the transmission mode of the keyboard?
  432.  
  433. Select one:
  434. a. Full-duplex mode
  435. b. Simplex mode
  436. c. Half-duplex mode
  437. d. Auto negotiation
  438. Feedback
  439. The correct answer is: Simplex mode
  440. Question 36
  441. Incorrect
  442. Mark 0 out of 2
  443. Not flagged
  444. Question text
  445. (Single Choice) In Ethernet standard, which of the following mechanisms is used to avoid collision when different nodes transmit packets simultaneously?
  446. Select one:
  447. a. CSMA/CD
  448. b. CSMA/AC
  449. c. CSMA/DA
  450. d. CSMA/CA
  451. Feedback
  452. The correct answer is: CSMA/CD
  453. Question 37
  454. Incorrect
  455. Mark 0 out of 2
  456. Not flagged
  457. Question text
  458. (Single Choice) Two computers are connected to each other by using twisted pair cable. The correct wiring sequence is
  459. Select one:
  460. a. Computers can not be directly connected with twisted pair cable
  461. b. 1--1, 2--2, 3--3, 4--4, 5--5, 6--6, 7--7, 8--8
  462. c. 1--3, 2--6, 3--1, 4--4, 5--5, 6--2, 7--7, 8--8
  463. d. 1--2, 2--1, 3--6, 4--4, 5--5, 6--3, 7--7, 8-8
  464. Feedback
  465. The correct answer is: 1--3, 2--6, 3--1, 4--4, 5--5, 6--2, 7--7, 8--8
  466. Question 38
  467. Incorrect
  468. Mark 0 out of 2
  469. Not flagged
  470. Question text
  471. (Single Choice) Under Which of the following circumstances, “multiple” work stations belong to the same collision domain?
  472. Select one:
  473. a. “multiple” workstations are connected to a LAN switch through twisted pair cables
  474. b. “multiple” workstations are connected to a router through twisted pair cables
  475. c. “multiple” workstations are connected to a hub through twisted pair cables
  476. d. “multiple” workstations are connected to a bridge through twisted pair cables
  477. Feedback
  478. The correct answer is: “multiple” workstations are connected to a hub through twisted pair cables
  479. Question 39
  480. Correct
  481. Mark 2 out of 2
  482. Not flagged
  483. Question text
  484. (Single Choice) Coaxial cables can be classified into different types by diameter. One of these types of the coaxial cables is suitable for relatively large LAN because it supports long distance and provides high reliability. Which of the following coaxial cables belongs to this type?
  485. Select one:
  486. a. 16-core coaxial cable
  487. b. Coaxial cable with a large diameter
  488. c. 10-core coaxial cable
  489. d. Coaxial cable with a small diameter
  490. Feedback
  491. The correct answer is: Coaxial cable with a large diameter
  492. Question 40
  493. Incorrect
  494. Mark 0 out of 2
  495. Not flagged
  496. Question text
  497. (Single Choice) Which of the following fibers allows for multiangular incidence of “multiple” beams of light for transmission?
  498. Select one:
  499. a. “Single”-mode fiber
  500. b. Active fiber
  501. c. Multimode fiber
  502. d. 4-core fiber
  503. Feedback
  504. The correct answer is: Multimode fiber
  505. Question 41
  506. Partially correct
  507. Mark 1 out of 3
  508. Not flagged
  509. Question text
  510. (Multiple Choice) Which of the following network topologies are the widely used backbone network topologies?
  511. Select one or more:
  512. a. Multi-homing structure
  513. b. Plane Hierarchical structure
  514. c. Plane and Space Hierarchical structure
  515. d. Full Mesh
  516. Feedback
  517. The correct answers are: Plane Hierarchical structure, Plane and Space Hierarchical structure
  518. Question 42
  519. Partially correct
  520. Mark 1 out of 3
  521. Not flagged
  522. Question text
  523. (Multiple Choice) Which of the following statements about the command view of VRP are true?
  524. Select one or more:
  525. a. The Quit command can switch a view from the system view to the user view.
  526. b. Different views may have different commands.
  527. c. A service command can switch a view from the system view to the corresponding service view.
  528. d. The System-view command can switch a view from the user view to the system view.
  529. Feedback
  530. The correct answers are: The System-view command can switch a view from the user view to the system view., A service command can switch a view from the system view to the corresponding service view., The Quit command can switch a view from the system view to the user view., Different views may have different commands.
  531. Question 43
  532. Incorrect
  533. Mark 0 out of 3
  534. Not flagged
  535. Question text
  536. (Multiple Choice) Which of the following storage devices are supported by Huawei Quidway router?
  537. Select one or more:
  538. a. CF Card
  539. b. Flash
  540. c. SDRAM
  541. d. NVRAM
  542. e. Hard Disk
  543. Feedback
  544. The correct answers are: SDRAM, NVRAM, Flash, CF Card
  545. Question 44
  546. Incorrect
  547. Mark 0 out of 3
  548. Not flagged
  549. Question text
  550. (Multiple Choice) What functions does VRP provide?
  551. Select one or more:
  552. a. Defines interfaces of a forwarding plane.
  553. b. Provides a unified user interface and a unified management window.
  554. c. Blocks communication between a forwarding plane and the VRP control plane.
  555. d. Provides the functions of a control plane.
  556. Feedback
  557. The correct answers are: Provides a unified user interface and a unified management window., Provides the functions of a control plane., Defines interfaces of a forwarding plane.
  558. Question 45
  559. Incorrect
  560. Mark 0 out of 3
  561. Not flagged
  562. Question text
  563. (Multiple Choice) The existence of loop in switched network can lead to
  564. Select one or more:
  565. a. Destination unreachable
  566. b. Unstable MAC address table
  567. c. Route self-loop
  568. d. Broadcast storm
  569. Feedback
  570. The correct answers are: Broadcast storm, Unstable MAC address table
  571. Question 46
  572. Incorrect
  573. Mark 0 out of 3
  574. Not flagged
  575. Question text
  576. (Multiple Choice) Which of the following descriptions about STP are incorrect?
  577. Select one or more:
  578. a. The switch with the smallest priority value is elected as non-root switch
  579. b. All the ports of the root switch are root port
  580. c. All the ports of the root switch are designated port
  581. d. A layer-2 switching network can have only one designated switch
  582. Feedback
  583. The correct answers are: A layer-2 switching network can have only one designated switch, All the ports of the root switch are root port, The switch with the smallest priority value is elected as non-root switch
  584. Question 47
  585. Correct
  586. Mark 2 out of 3
  587. Not flagged
  588. Question text
  589. (Multiple Choice) Which of the following ports are defined by STP and indicate that Physical Layer and Data Link Layer are working normally and STP is enabled at ports on a device?
  590. Select one or more:
  591. a. Root Port
  592. b. Designated Port
  593. c. Disable Port
  594. d. Alternate Port
  595. Feedback
  596. The correct answers are: Root Port, Designated Port, Alternate Port
  597. Question 48
  598. Correct
  599. Mark 2 out of 3
  600. Not flagged
  601. Question text
  602. (Multiple Choice) In STP, the role of switch port includes ( )
  603. Select one or more:
  604. a. Root port
  605. b. Designated port
  606. c. Backup root port
  607. d. Optional port
  608. e. Alternate port
  609. Feedback
  610. The correct answers are: Root port, Alternate port, Designated port
  611. Question 49
  612. Correct
  613. Mark 3 out of 3
  614. Not flagged
  615. Question text
  616. (Multiple Choice) Which of the following are the interface states of STP?
  617. Select one or more:
  618. a. Forwarding
  619. b. Shut down
  620. c. Learning
  621. d. Disabled
  622. e. Blocking
  623. Feedback
  624. The correct answers are: Disabled, Blocking, Learning, Forwarding
  625. Question 50
  626. Incorrect
  627. Mark 0 out of 3
  628. Not flagged
  629. Question text
  630. (Multiple Choice) Which of the following are the advantages of RSTP compared with STP?
  631. Select one or more:
  632. a. Once a port of the switch which is configured as edge port has been enabled, it will become designated port immediately and transit to forwarding state.
  633. b. If the designated port is connected with P2MP link, it can make a handshake with the connected bridge and enter the forwarding state immediately after it receives the response.
  634. c. A new root port is elected on the non-root switch and the previous old root port is no longer in forwarding state. Moreover the designated port of the segment which connects with the new root port already starts to forward the data. In this case, the new root port can enter forwarding state immediately.
  635. d. If the designated port is connected with P2P link, it can make a handshake with the connected bridge and enter the forwarding state immediately after it receives the response.
  636. Feedback
  637. The correct answers are: A new root port is elected on the non-root switch and the previous old root port is no longer in forwarding state. Moreover the designated port of the segment which connects with the new root port already starts to forward the data. In this case, the new root port can enter forwarding state immediately., Once a port of the switch which is configured as edge port has been enabled, it will become designated port immediately and transit to forwarding state., If the designated port is connected with P2P link, it can make a handshake with the connected bridge and enter the forwarding state immediately after it receives the response.
  638. Question 51
  639. Incorrect
  640. Mark 0 out of 3
  641. Not flagged
  642. Question text
  643. (Multiple Choice) Which of the following statements are incorrect?
  644. Select one or more:
  645. a. The preferences for each static routes entry can be different.
  646. b. The greater the cost, the better the route is.
  647. c. By default, OSPF is more preferred to RIP.
  648. d. For those routes to the same destination on VRP platform, the one with higher preference value is more preferred over the one with lower preference value.
  649. Feedback
  650. The correct answers are: The greater the cost, the better the route is., For those routes to the same destination on VRP platform, the one with higher preference value is more preferred over the one with lower preference value.
  651. Question 52
  652. Incorrect
  653. Mark 0 out of 3
  654. Not flagged
  655. Question text
  656. (Multiple Choice) Which of the following statements regarding routing loops are correct?
  657. Select one or more:
  658. a. Route loops are generated by dynamic routing protocols only.
  659. b. Packets are routed circularly between two or more routers and will be discarded when the TTL becomes 0.
  660. c. Routing loops cause the packets not able to reach the destination and this will result in network congestion.
  661. d. Link state routing protocols will not cause the routing loops.
  662. Feedback
  663. The correct answers are: Routing loops cause the packets not able to reach the destination and this will result in network congestion., Packets are routed circularly between two or more routers and will be discarded when the TTL becomes 0.
  664. Question 53
  665. Incorrect
  666. Mark 0 out of 3
  667. Not flagged
  668. Question text
  669. (Multiple Choice) Which of the following statements regarding the routing table are correct?
  670. Select one or more:
  671. a. The routes from generated by different protocols have different preferences.
  672. b. The costs of different routing protocols are not comparable
  673. c. The next hop in the routing table is redundant because the outgoing interface can be used for packet forwarding.
  674. d. The costs of different routing protocols are comparable.
  675. Feedback
  676. The correct answers are: The routes from generated by different protocols have different preferences., The costs of different routing protocols are not comparable
  677. Question 54
  678. Incorrect
  679. Mark 0 out of 3
  680. Not flagged
  681. Question text
  682. (Multiple Choice) A command for configuring a static route contains the destination IP address and mask. In which notations can the mask be expressed?
  683. Select one or more:
  684. a. Dotted hexadecimal notation
  685. b. Mask size (namely, the number of binary 1s in the mask)
  686. c. Dotted decimal notation
  687. d. Dotted binary notation
  688. Feedback
  689. The correct answers are: Dotted decimal notation, Mask size (namely, the number of binary 1s in the mask)
  690. Question 55
  691. Incorrect
  692. Mark 0 out of 3
  693. Not flagged
  694. Question text
  695. (Multiple Choice) Which of the following are the disadvantages of using static routing protocol in the network?
  696. Select one or more:
  697. a. External routers can not learn the static route configuration which will result in network unreachability.
  698. b. On the VRP platform, load balancing can not be implemented using static route
  699. c. Re-configurations are required after the topology changes
  700. d. The configurations are complicated in a large network.
  701. Feedback
  702. The correct answers are: The configurations are complicated in a large network., Re-configurations are required after the topology changes
  703. Question 56
  704. Partially correct
  705. Mark 2 out of 3
  706. Not flagged
  707. Question text
  708. (Multiple Choice) Which of the following communication types are defined based on information interaction between the transmitter and the receiver?
  709. Select one or more:
  710. a. Auto-negotiation
  711. b. Duplex
  712. c. Half-duplex
  713. d. Simplex
  714. Feedback
  715. The correct answers are: Simplex, Half-duplex, Duplex
  716. Question 57
  717. Partially correct
  718. Mark 2 out of 3
  719. Not flagged
  720. Question text
  721. (Multiple Choice) In late 1980s, UTP appeared and was widely used. Which of the following are advantages of UTP?
  722. Select one or more:
  723. a. Easy to manufacture
  724. b. Both of the physical and logical topology is bus type
  725. c. Low price
  726. d. Receive and transmit using different wires
  727. Feedback
  728. The correct answers are: Low price, Easy to manufacture, Receive and transmit using different wires
  729. Question 58
  730. Partially correct
  731. Mark 2 out of 3
  732. Not flagged
  733. Question text
  734. (Multiple Choice) A complete data communication system includes
  735. Select one or more:
  736. a. Receiver
  737. b. Message
  738. c. Harddisk
  739. d. Sender
  740. e. Protocol
  741. Feedback
  742. The correct answers are: Sender, Receiver, Message, Protocol
  743. Question 59
  744. Incorrect
  745. Mark 0 out of 3
  746. Not flagged
  747. Question text
  748. (Multiple Choice) As a device for converting signals between an edge system and a communications system, a modem is essential in a WAN. A modem is connected to a serial port on a router. Which two of the following transmission modes does the serial port work in?
  749. Select one or more:
  750. a. Routing
  751. b. Switching
  752. c. Synchronous
  753. d. Asynchronous
  754. Feedback
  755. The correct answers are: Synchronous, Asynchronous
  756. Question 60
  757. Incorrect
  758. Mark 0 out of 3
  759. Not flagged
  760. Question text
  761. (Multiple Choice) Which of the following protocols can be used to upgrade VRP?
  762. Select one or more:
  763. a. TELNET
  764. b. XMODEM
  765. c. TFTP
  766. d. FTP
  767. Feedback
  768. The correct answers are: FTP, TFTP, XMODEM
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