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NEW QUESTION 335
Telnet.read in TelnetliB._The role of all() is to read all data until EOF. If the echo does not return EOF, it will always block ()
- A. True
- B. False
Answer: A
NEW QUESTION 336
Which of the following types does IPv6 address include? ()*
- A. Multicast address
- B. Unicast address
- C. Broadcast address
- D. Anycast address
Answer: A,B,D
NEW QUESTION 337
Which statement about the 0SPF protocol DR is correct? ()
- A. An interface priority is 0, then the interface cannot be a DR
- B. DR must be the highest priority device in the network
- C. DR election is preemptive
- D. Router ID, the larger the value, the more preferred it is to be elected as DR
Answer: A
NEW QUESTION 338
The output information of the router R1 routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
<R1>display ip routing-table
Route Flags: R-relay, D-download to fib
- A. The router will forward data packets whose destination network is 12.0.0.0/8
- B. The data packet whose destination network is 11.0.0.0/8 will be forwarded from the router's GigabitEthernet0/0/0 interface
- C. The router will discard packets whose destination network is 11.0.0.0/8
- D. The data packet whose destination network is 12.0.0.0/8 will be forwarded from the router's Ethernet0/0/0 interface
Answer: A,B
NEW QUESTION 339
The network is shown in the figure below. The router uses a sub-interface as the host gateway. The gateway IP address is 10.0.12.2. Which of the following commands can achieve this requirement? () (Multiple Choice Questions)
- A. interface GigabitEthernet0/0/0.20Dotlq termination vid 20
Ip address10.0.12.2255.255.255.0Arp broadcast enable # - B. interface GigabitEthernet0/0/0.20Dotlg termination vid 10
Ip address10.0.12.2255.255.255.0Arp broadcast enable - C. interface GigabitEtherneto/0/0.10Dotlq termination vid 20
Ip address10.0.12.2255.255.255.0Arp broadcast enable - D. interface GigabitEthernet0/0/0.10Dotlq termination vid 10
Ip address10.0.12.2255.255.255.0 Arp broadcast enable #
Answer: A,C
NEW QUESTION 340
Ethernet_I containing the Ethernet headerIWhat is the length of the frame? ()
- A. 64-1518B
- B. 60-1560B
- C. 64-1500B
- D. 46-1500B
Answer: D
NEW QUESTION 341
In the broadcast network shown in the figure, OSPF runs on four routers in the same area and on the same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve a better backup effect.
- A. True
- B. False
Answer: B
NEW QUESTION 342
Which of the following messages is used for IPv6 stateless address autoconfiguration? ()*
- A. NA
- B. RA
- C. NS
- D. RS
Answer: B,D
NEW QUESTION 343
If it is UDP, the value of the protocol field of the network layer is 6 ()
- A. True
- B. False
Answer: A
NEW QUESTION 344
In the broadcast network, which routers will a DRother router exchange link status information with?
- A. DR
- B. All ospf neighbors
- C. DR Other
- D. BDR
Answer: A,D
NEW QUESTION 345
Which of the following fields is not included in the HELLO packet of the OSPF protocol?
- A. sysname
- B. HelloInterval
- C. Network Mask
- D. Neighbor
Answer: A
NEW QUESTION 346
The login timeout time in the VRP system can only be set under the vty interface. ()
- A. True
- B. False
Answer: B
NEW QUESTION 347
As shown in the figure, the G0/0/0 and G0/0/1 interfaces of RTA are connected to two different network segments. RTA is the gateway of these two networks. Before host A sends data to host C, will it send an ARP Request to obtain O's MAC address? () (Single-choice question)
- A. SW
- B. Host C
- C. G0/0/0 interface of RTA
- D. G0/0/1 interface of RTA
Answer: C
NEW QUESTION 348
RTA. Uses NAT technology and realizes many-to-many NAPT address translation by defining an address pool, so that hosts in the private network can access the public network. Assuming that there are only two public network P addresses in the address pool, and they have been assigned to hosts A and B for address conversion, and at this time, if the host also wants to access the public network, the following description is correct ().
- A. RTA. Convert the source port of host C., the host can access the public network
- B. HostC.Unable to assign a public network address, and cannot access the public network
- C. RTA. Assign interface address (200.10.10.3) to host C. Host C can access the public network
- D. All hosts can access the public network by using the public network address in turn
Answer: A
NEW QUESTION 349
What is the total length of the VLAN frame format defined by IEEE802.1Q? ()
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 350
RADIUS is a common protocol to implement AAA.
- A. True
- B. False
Answer: A
NEW QUESTION 351
The load sharing mode at both ends of the Eth-Trunk can be inconsistent.
- A. True
- B. False
Answer: A
NEW QUESTION 352
When using the FTP protocol to upgrade the router software, the transmission mode should be selected ()
- A. Stream byte mode
- B. Text mode
- C. Binary mode
- D. Byte mode
Answer: C
NEW QUESTION 353
Which of the following statements about the role of the STP protocol ForwarD.Delay is correct? ()
- A. Improve the survival time of BPDUs to ensure that the configured BPDUs can be forwarded to more switches
- B. Prevent temporary loops
- C. Reduce the time interval of BPDu transmission and improve the convergence speed of STP
- D. There is a delay in the transition between Blocking state and DsiableD state
Answer: B
NEW QUESTION 354
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