H31-211 Online Practice Questions and Answers

What is the correct statement about free ARP? (multiple choice)

A. By sending a free ARP, you can confirm whether the IP address has a conflict.

B. The free ARP packet format belongs to the AR request packet.

C. Free ARP helps update old IP address information

D. The free ARP packet format belongs to the ARP reply packet.

The .IP header contains an 8-bit Type of Service (TOS) field. Which of the following are the TOS fields? (Multiple choice)

A. 3bit COS field

B. 1bit minimum delay

C. 1bit maximum throughput

D. 2bit maximum reliability

What is the meaning of the "-m" parameter in the Ping function of the VRP platform?

A. Set the number of times to send a message

B. Set the length of the sent message

C. Set the interval between sending messages

D. Set the timeout period of the packet

Which of the following options is used in the device, marking the entry of Ethernet into the maturity of development?

A. Twisted pair

B. Coaxial electric shaft

C. Single mode fiber

D. Multimode fiber

What parts of the general network address are composed? (multiple choice)

A. Logical address

B. Link address

C. Network address

D. Host address

Which layer is responsible for converting unreliable transmission channels into reliable transmission channels, transmitting data frames with parity, and using error control and frame sequential control functions?

A. Physical layer

B. Data link layer

C. Network layer

D. Transport layer

What are the characteristics of the OSPF routing protocol? (multiple choice)

A. Using route number for path calculation

B. No routing self-loop

C. Route calculation can be done in different regions

D. Suitable for routing between different Ass

The FTP session contains two channels, which are respectively (multiple choice)

A. Output channel

B. Input channel

C. Control channel

D. Data channel

In PPP, when both ends of the communication side detect the physical line activation, they will transition from the link unavailability phase to the link establishment phase. In this phase, which of the following protocols is used to configure the link parameters?

A. IP

B. DHCP

C. LCP

D. NCP

Which of the following is the transport layer protocol used by Telnet?

A. TCP

B. UDP

C. ECMP

D. UCMP