AUGUST 19, 2023 HCIA-Datacom V1.0 Exam Questions & Answers

1. When the host accesses the web server of the server, the value of the network layer protocol field is 6.

• • True

• • False

2. A network engineer prompts the following information when entering the command line:
Which statement is correct about this prompt message?

• • The input command is incompletewrong

• • The parameter type is wrong

• • The input command is ambiguous

• • Keyword not found

3. As shown in the figure, there are three data packets captured by the administrator in the network. Which of the following statements is wrong?

• • None of the three packets contain application layer data

• • These three data packets represent the three-way handshake process of TCP

• • The telnet client uses port 50190 to establish a connection with the server

• • The IP address of the telnet server is 10.0.12.1, and the IP address of the telnet client is 10.0.12.2

4. On the command line interface of the Huawei AR router, the save command is used to save the current system time.

• • True

• • False

5. Which statement about the transport layer protocol is correct? (Multiple choice)

• The establishment of a TCP connection is a three-way handshake process, while the termination of a TCP connection requires a four-way handshake

• • UDP uses the SYN and ACK flags to request and confirm connection establishment

• Well-known port numbers range from 1-1023

• UDP is suitable for transmitting delay-sensitive traffic and can be reassembled according to the sequence number field in the packet header

6. The tracert diagnostic tool in Huawei routers is used to trace the forwarding path of data.

• True

• False

7. In which of the following network types does OSPF need to elect DR and BDR? (Multiple choice)

• • Broadcast type

• • Point-to-point type

• • Point-to-multipoint

• • NBMA

8. Which of the following statements about static routing is wrong?

• • Manual configuration by network administrator

• • Routing information needs to be exchanged between routerscorrect

• • Cannot automatically adapt to changes in network topology

• • Low requirements on system performance

9. Which frequencies does the IEEE 802.11n standard support? (Multiple choice)

• • 6GHz

• • 2.5GHz

• • 2.4GHz

• • 5GHz

10. In the network shown in the figure below, what commands can be entered on the router to enable host A to ping host B? (Multiple choice)

• RTA: ip route-static 0.0.0.0 0.0.0.0 11.0.12.2
  RTB: ip route-static 0.0.0.0 0.0.0.0 11.0.12.1

• RTA: ip route-static 10.0.12.5 255.255.255.252 11.0.12.2
  RTB: route-static 10.0.12.1 255.255.255.252 11.0.12.1

• • RTA: ip route-static 0.0.0.0 0.0.0.0 11.0.12.1
    RTB: ip route-static 0.0.0.0 0.0.0.0 11.0.12.2

• • RTA: ip route-static 10.0.12.5 255.255.255.252 11.0.12.1
    RTB: ip route-static 10.0.12.1 255.255.255.252 11.0.12.2