[2026] H3C Constructing Small - and Medium - Sized Enterprise Network

문제1

The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0-----WAN----S1/0--MSR-2--GE0/0----HostB
The customer's WAN network only supports synchronization, and S1/0 of MSR-2 needs to negotiate an IP address from the opposite MSR-1 instead of manually configuring a static IP address.
Then the S1/0 interface of the two routers can run ______. (Multiple choice)

A. PPP+RIP

B. HDLC

C. PPP

D. HDLC+RIP

정답: A,C

문제2

Which of the following statements about IP addresses are correct is ______. (Multiple choice)

A. The first byte of class A address is 0~126 (127 is reserved for other use)

B. IP address consists of two parts: network number and host number

C. The IP address with all zeros in the host number is called the network address, which is used to identify all hosts in a network.

D. IP address is usually expressed in dotted decimal notation, for example: 10.110.168.121

정답: B,D

문제3

The following statements about OSPF information display and debugging commands are correct _____. (Multiple choice)

A. Use the display ospf peer command to view the router's OSPF neighbor relationship

B. View OSPF error information through display ospf fault

C. Use the display ospf routing command to view the router's OSPF routing situation, not all OSPF routes will be added to the global routing table

D. You can view the link state database of the router through the display ospf lsdb command. The link state database of all OSPF routers in the network should be the same

정답: A,C

문제4

For the understanding of packet switching, the correct one of the following statements is ______. (Multiple choice)

A. Packet switching is a switching method based on Store-and-Forward switching

B. Packet switching includes frame-based packet switching and cell-based packet switching

C. Each packet carries the address identification of the receiver and the sender, and the packet can be forwarded directly without any operation, thereby improving efficiency

D. The transmitted information is divided into packets of a certain length and forwarded in units of packets

정답: A,B,D

문제5

If a port running STP in the Ethernet switch does not receive or forward data, receives but does not send BPDUs, and does not perform address learning, then the port should be in the ______ state.

A. Blocking

B. Waiting

C. Learning

D. Forwarding

E. Disable

F. Listening

정답: A

문제6

Which of the following statements about IP addresses are correct is ______. (Multiple choice)

A. The IP address with all 1s in the host number is called the network address, which is used to identify all hosts on a network

B. The first byte of class A address is 0~126 (127 is reserved for other use)

C. IP address consists of two parts: network number and host number

D. IP address is usually expressed in dotted decimal notation, for example: 10.110.168.121

정답: C,D

문제7

The customer's routers MSR-1 and MSR-2 are interconnected through their GigabitEthernet0/0, and RIP is running between the two routers. RIP has correctly completed remote routing learning. The following configuration is added on MSR-1: firewall enable acl number 3000 rule 0 deny udp destination-port eq 520 rule 5 permit ip and this ACL is applied to the inbound direction of MSR-1 interface GigabitEthernet0/0. So ______ .

A. MSR-2 still has the RIP route to the opposite end

B. MSR-1 cannot learn the RIP route of the opposite end

C. MSR-2 cannot learn the RIP route of the opposite end

D. MSR-1 still has the RIP route to the opposite end

정답: A,B

문제8

The customer's network connection is shown in the figure.

Among them, the IP addresses of RTA, RTB, and RTC are respectively 2.2.2.1/24, 2.2.2.2/24, 2.2.2.3/24. To realize the intercommunication between RTA, RTB and RTC, configure the following frame relay MAP on RTA correct ?

A. fr map ip 2.2.2.1 40 60

B. fr map ip 2.2.2.3 50

C. fr map ip 2.2.2.1 40

D. fr map ip 2.2.2.2 40

정답: B,D

문제9

The two routers RTA and RTB are interconnected back-to-back using serial ports. The serial port of RTA is configured with HDLC protocol, and the serial port of RTB is configured with PPP protocol.
Both devices are configured with the correct IP address, then what will happen is ______. (Multiple choice)

A. RTB serial port physical layer up, protocol layer down

B. The physical and protocol layers of RTA and RTB serial ports are both down

C. RTA serial port physical layer down, protocol layer down

D. The physical layer of the RTA serial port is up, and the protocol layer remains up, but RTA cannot ping RTB

E. The physical layer of the RTB serial port is down, and the protocol layer is down.

정답: A

문제10

The default subnet mask for class A addresses is ______.

A. 255.255.0.0

B. 255.0.0.0

C. None of the above is correct

D. 255.255.255.0

정답: B

문제11

If all 0 and all 1 subnets can be used as effective subnets, the class C address 192.168.1.0 is subnetted with a 26-bit subnet mask, and the number of effective subnets that can be divided is ______.

A. 2

B. 6

C. 4

D. 8

정답: C

문제12

On the MSR router, the -tos parameter of the ping command specifies the value of the ToS (Type of Service) field in the ICMP Echo Request message, the value range is 0~255, and the default value is ______.

A. 0

B. 2

C. 46

D. 63

정답: A

문제13

A router is connected to the operator's network through the Serial1/0 interface. To configure a default route on this router to achieve the purpose of accessing the Internet, which of the following configurations must be correct and effective?

A. The above configuration is not correct

B. ip route-static 0.0.0.0 0.0.0.0 Serial1/0

C. ip route-static 255.255.255.255 0.0.0.0 Serial1/0

D. ip route-static 0.0.0.0 0 Serial1/0

정답: A

문제14

Use the ______ command to specify the operating system software to be used for the next startup.

A. boot-loader

B. bootfile

C. startup

D. boot startup

정답: A

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