Free Access H3C.GB0-391.v2022-05-05.q128 Practice Test (Page 18)

Question 81

Best-Effort model has the following features ?

A.District Do not treat different types of business

B.reality now simple.Save processing resources and fast processing speed

C.pass through queues implemented

D.the number of broadband data streams, delay, jitter and packet loss controllable

Question 82

PPP link transmission portion of the packet header information remains the same, in order to improve the throughput of the link, it may be considered by ______ mechanism.

A.link channel and slice interleave

B.VJ TCP header compression

C.IP packet header compression

D.PPP packets of STAC-LZS algorithm

Question 83

Which of the following are information signaling ____ .

A.by the user when using the phone, pick up the telephone handset, the handset came from the dial tone.

B.by the user using the phone, pick up the telephone handset called number, called the ellipsoid of the ringing telephone.

C.used when the user using the telephone, after the telephone handset from the chamber called number, outgoing handset to ring back tone.

D.by the user using the phone, pressing the number keys to PBX transmits the called number representing a series of low and high audio frequencies of the audio frequency.

Question 84

Among the broadband access transmission media, the highest achievable transmission rate is ____ .

A.optical fiber

B.same coaxial cable

C.Copper quality UTP

D.no radio waves

E.electric power line

Question 85

M In BGP MPLS VPN on a network station of the public network equipment, displa mpls ldp lsp command command checks its label forwarding table, the following results described _______ .
[PE1] dis mpls ldp lsp
LDP LSP Information
-------------------------------------------------- -------------------------------------------------- ------------
SN DestAddres s/Mask In/OutLabel Next-Hop In/Out-Interface
-------------------------------------------------- -------------------------------------------------- -------------
1 1.1.1.1/32 3/NULL 127.0.0.1 Eth0/0/InLoop0
2 1.1.1.2/32 NULL/1024 100.0.0.2 ---------Eth0/0
3 1.1.1.3/32 NULL/3 100.0.0.2 ---------Eth0 /0

A.1.1.1.3/32 is the interface address of the public network device directly connected to PE1 , so the output label is 3

B.1.1.1.3/32 is the local interface address of PE1 , all outgoing labels are NULL and outgoing labels are 3.

C.1.1.1.3/32 is the interface address of the public network device directly connected to PE1 , so the output label is 1024

D.1.1.1.3/32 is the local interface address of PE1 , all outgoing labels are NULL , and incoming labels are 3.

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