NEW QUESTION 1

If a windows host is started for the first time, if it uses DHCP to obtain an IP address, what is the source IP address of the first packet sent by this host? ()

• A. 0.0.0.0
• B. 169.254.2.33
• C. 255.255.255.255
• D. 127.0.0.1

Answer: A

NEW QUESTION 2

In an OSPF broadcast network, with which routers does a Dothter router exchange link state information? ( )

• A. BDR
• B. All OSPF neighbors
• C. DR Other
• D. DR

Answer: AD

NEW QUESTION 3

Which of the following 0SPF protocol packets can ensure the reliability of LSA update?

• A. LSACK
• B. LSU
• C. LSR
• D. DD

Answer: B

NEW QUESTION 4

In the OSI reference model, what can complete end-to-end error detection and flow control is ()

• A. Physical layer
• B. data link layer
• C. Network layer
• D. Transport layer

Answer: D

NEW QUESTION 5

Compared with STP, which of the following port roles are newly defined in RSTP? ()*

• A. Designated port
• B. Root port
• C. Alternate port
• D. Backup port

Answer: CD

NEW QUESTION 6

A network engineer prompts the following message when entering the command line: Error: UnrecognizeD.commanD.founD.at '' position. Which of the prompt information is correct? ()

• A. The input command is incomplete
• B. Wrong parameter type
• C. Keyword not found
• D. The input command is ambiguous

Answer: C

NEW QUESTION 7

The output information of the STP port of a certain switch is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
Huaweidisplay stp interface Ethernet 0/0/1
-------CIST Global InfoMode STP------- CIST Bridge: 32768.4c1f-cc46-4618
Config TimesHello 4s MaxAge 20s FwDly 15s MaxHop 20 Active Times:Hello 2s MaxAge 20s FwDly 15s MaxHop 20 CIST Root/ERPC:0.4c1f-ccf7-3214/200000
CIST RegRoot/IRPC: 32768.4c1f-cc46-4d18/0

• A. Forward-delay is 20s
• B. Configure the MaxAge of the BPDU to 20s
• C. The period for sending configuration BPDUs on this port is 2s
• D. The switch is not a root bridge

Answer: A

NEW QUESTION 8

As shown in the broadcast network. 0SPF runs on four routers. And in the same area. Same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve a better backup effect. ()(True or False)

• A. True
• B. False

Answer: B

NEW QUESTION 9

The administrator wants to allocate a Hundred P address on the G0/0/0 interface of the router. Which of the following addresses is correct? ()

• A. 192.168.10.112/30
• B. 237.6.1.2/24
• C. 127.3.1.4/28
• D. 145.4.2.55/26

Answer: D

NEW QUESTION 10

The output information of the router is shown in the figure. Which of the following statements is wrong? () (Single-choice question)

• A. The MTU value of the Ethernet0/0/0 interface is 1480
• B. The broadcast address corresponding to the Ethernet0/0/0 interface is 10.0.12.255
• C. The physical link of the Ethernet0/0/0 interface is normal
• D. Ethernet (The IP address of the /0/0 interface is 10.0.12.1/24

Answer: A

NEW QUESTION 11

Among the configuration BPDUs sent by the switch, which bridge D. is unlikely to appear? ()

• A. 819200-01-02-03-04-CC
• B. 409600-01-02-03-04-CC
• C. 000-01-02-03-04-CC
• D. 204800-01-02-03-04-CC

Answer: D

NEW QUESTION 12

The management of users by NAS devices is based on domains. Each user belongs to a domain, and a domain is a group composed of users belonging to the same domain. ()

• A. True
• B. False

Answer: A

NEW QUESTION 13

What is the total length of an IPv6 address in bits? ()

• A. 96
• B. 64
• C. 32
• D. 128

Answer: D

NEW QUESTION 14

Which of the following statements about IPv6 address configuration are correct? ()*

• A. IPv6 supports stateless automatic configuration
• B. IPv6 address supports automatic configuration in multiple ways
• C. IPv6 supports DHCPv6 for address configuration
• D. IPv6 addresses can only be configured manually

Answer: ABC

NEW QUESTION 15

There is no need to write a hop when writing static routes at both ends of the PPP link. The Ethernet link needs

• A. True
• B. False

Answer: A

NEW QUESTION 16
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