[Mar 16, 2022] GB0-391 PDF Questions and Testing Engine With 468 Questions
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NEW QUESTION 29
In the MSR router configuration command is as follows:
acl number 2001
rule o permit source 19 2.168.2.0 0.0.0.255
acl number 2002
rule o permit source 192.168.3.0 0.0.0.255
acl number 2003
rule o permit source 192.168.0.0 0.0.0.255
#
traffic classifier 2 operator or
if-match acl 2001
if-match classifier 1
traffic classifier 1 operator and
if-match acl 2002
if-match acl 2003
#
traffic behavior 2
filter deny
#
qos polic 2
classifier 2 behavior 2
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos appl polic 2 0utbound
When the source address are 192.168.2.2.192.168.3.2.192.168.0.2 packets from the port G0 / 1 forwarding outwardly, the following statement is correct ____ .
- A. Packets with the source address of 192.168.2.2 are forwarded normally
- B. three message by the flow are blocked
- C. Packets with the source address of 192.168.0.2 are forwarded normally
- D. Packets with source address 192.168.3.2 are forwarded normally
Answer: C,D
NEW QUESTION 30
In the GRE encapsulation of IP over IP , IP uses the protocol number ____ to mark the GRE header.
- A. 47
Answer: A
NEW QUESTION 31
The edge devices of the MPLS network are called _______ .
- A. LER
- B. LSR
- C. LRR
- D. LSP
Answer: A
NEW QUESTION 32
t If the device with a single burst rate dual-token bucket algorithm for traffic measurement, assume that a moment about a 400 -byte packet arrives, then CBS so that the number of tokens in the token bucket is 300 characters Section, the message will be marked as
- A. peaks in the rate of value
- B. exceed the committed rate
- C. exceed the peak rate
- D. Cheng Connaught the rate
Answer: B
NEW QUESTION 33
In the SIP network, when the redirect server receives the session request message sent by the calling UA , ____ .
- A. re- orienting the received server directly calling UA session request ; forwards the message to the called UA
- B. Lord called UA all messages are forwarded through a proxy server
- C. Heavy targeting server to find the called UA position information, which is returned to the calling UA
- D. Heavy directional wiping search server called UA position information, the position and initiates a session request
Answer: C
NEW QUESTION 34
Which of the following descriptions of MPLS lsr-id is correct is _______ .
- A. lsr-id is unique in MPLS network
- B. The format of lsr-id is the same as the IP address
- C. lsr-id must be configured to be the same as the Router ID of the LSR
- D. lsr-id is used to identify an LSR device in the MPLS network
Answer: A,B,D
NEW QUESTION 35
The following commands are configured on the S3610 switch:
qos map-table dot1p-lp
import 1 export 5
interface Ethernet1/0/8
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 to 2
qos trust dot1p
interface Ethernet1/0/9
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 to 2
qos gts queue 5 cir 1950 cbs 2000000
Then when the flow rate is 10Mbps the vlan id is 2 and 802.1p preferred priority of 1 is the packet from the port E1 / 0/8 into the only port E1 / 0/9 when forwarding.Then the following statement is correct
- A. portions partial misconfigured
- B. Packet traffic shaping is 1950kbps for forwarding
- C. E1 / 0 /.9 outbound message packets 802.1p Priority Level 1
- D. 10Mbps packets are forwarded normally
- E. E1 / 0 /.9 outgoing packets 802.1p preferred precedence 5
Answer: B,C
NEW QUESTION 36
The following of GRE VPN and BGP / MPLS VPN correctly described ____ .
- A. GRE VPN can separate address space, BGP/MPLS VPN cannot separate address space
- B. both point to point tunnel
- C. GRE VPN cannot separate address space, BGP/MPLS VPN can separate address space
- D. Both can separate the address space
Answer: C
NEW QUESTION 37
In a VoIP network, which of the following factors are related to the bandwidth saved by VAD technology ?
- A. mesh network congestion degree
- B. said language and characteristics of the speaker
- C. selected by signaling type
- D. selected encoding type used
Answer: B,D
NEW QUESTION 38
Among the following ADSL standards, the one that does not need to use a splitter is ____ .( Choose one or more )
- A. ITU 992.3
- B. ITU 992.1
- C. ITU 992.4
- D. ITU 992.2
Answer: C,D
NEW QUESTION 39
In ADSL of PPPoE applications, when the CPE side using MSR router + ADSL interface card for networking, co side DSLAM make use IP rows on the co centralized router side ( PPPoE Server ) need to be on which interfaces PPPoE relevant The configuration ?
- A. Virlual-Ethernet
- B. ATM interface
- C. Yi Tai Ethernet port
- D. Virtual-Template
- E. dial number Interface
Answer: C,D
NEW QUESTION 40
Which statement about RED ( Random Early Detection ) is correct?
- A. flat average queue length is less than the minimum discard threshold, less than the maximum discard threshold, packets are dropped randomly
- B. flat average queue length is less than the minimum discard threshold, discarding packets not
- C. The higher the priority of the packet , the lower the drop probability.Which means less discarded
- D. flat average queue length is greater than the maximum discard threshold, packets are dropped randomly
- E. In discarded after a congested port
Answer: A,B
NEW QUESTION 41
A company network through the corporate router RTA access port S0 / 0 is connected to the external network.In order to avoid congestion at the egress of the external network, the company hopes to limit the data traffic of various departments in the inbound direction of the RTA interface S0/0 .Which of the following technologies is appropriate ?
- A. GTS
- B. LR
- C. CAR
- D. WRR
Answer: C
NEW QUESTION 42
The encapsulation format of the voice data transmitted in the VoIP network is
- A. IP UDP the I the I the I the RTP speech sound data
- B. IP the I speech sound data
- C. IP TCP the I the I the I the RTP speech sound data
- D. IP the I the I RTCP UDP the I the I the RTP speech sound data
Answer: A
NEW QUESTION 43
Which of the following codes has the lowest requirement for broadband?
- A. G711
- B. G726
- C. G729
- D. G723
Answer: D
NEW QUESTION 44
In BGP MPLS VPN network, the public network P on the device, the root packet according _____ packet forwarding.
- A. an outer layer MPLS label
- B. inner layer MPLS label
- C. outer layer object IP address
- D. inner layer object IP address
Answer: A
NEW QUESTION 45
An operator hopes to deploy ADSL ( ADSL2 ) to kill the system in a community with relatively dense users and short transmission distance .Users do not require high bandwidth, and pay more attention to its economy and ease of installation and maintenance.
Based on the above requirements, when choosing ADSL ( ADSL2 ) standard, the ideal is ____ .( Choose one or more )
- A. ITU 992.3
- B. ITU 992.1
- C. ITU 992.4
- D. ITU 992.2
Answer: C,D
NEW QUESTION 46
......
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