In the frame relay network, what are the correct descriptions about the bandwidth control parameters?
(multiple choice)
A. CIR is the rate of user information transmission agreed by the network and the user, that is, the committed information rate.
B. Bc is the amount of data that the network allows users to transmit at CIR rate Tc intervals. They are related to Tc=Bc/CIR.
C. Be is the amount of data that the network allows users to transmit more than Bc during the Tc interval.
D. If the user transmits information at a rate less than or equal to CIR, the transmission of this part of information should be guaranteed.
Which of the following is the correct description of NAT? (multiple choice)
A. NAT is the abbreviation of Yingyin Address Translation
B. Address translation, also known as address translation, is used to convert between private and public network addresses.
C. When the host of the internal network accesses the external network, NAT is not required.
D. Address translation proposed to provide an effective way to solve the problem of IP address tension
What kinds of frame types does HDLC have? (multiple choice)
A. Information frame
B. Monitoring frame
C. Unnumbered frames
D. Retransmission frame
What kinds of frame types does HDLC have? (multiple choice)
A. Information frame
B. Monitoring frame
C. Unnumbered frames
D. Retransmission frame
Which of the following selections of objects in the top indicates that Ethernet has entered a mature stage of development?
A. Twisted pair
B. Coaxial electric shaft
C. Single mode fiber
D. Multimode fiber
In the same LAN, A sends a packet to the B host. What is the source IP address of the packet?
A. Host A's IP address
B. Host B's IP address
C. Host A's gateway IP address
D. Host B's gateway IP address
A common PPP authentication protocol is PAP and CHAP. The two ends of a PPP link can use different authentication protocols to authenticate the peer. However, the authenticated party must support the authentication protocol used by the authenticator and correctly configure the authentication information such as the username and password.
A. True
B. False
In the OSPF routing protocol, is there a way to solve the problem that the non-backbone area and the backbone area cannot be directly connected?
A. Setting up ABR
B. Setting up ASBR
C. Setting up a virtual connection
D. Set the STUB area
Priority 0 in the VRRP packet indicates that the device stops participating in the VRRP backup group.
A. True
B. False
What are the TCI (Tag Control Information) fields in the VLAN tag? (Multiple choice)
A. Priority
B. CFI
C. VLAN Identifier
D. TPID
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