Latest [Feb 05, 2022] GB0-391 Exam Questions – Valid GB0-391 Dumps Pdf
GB0-391 Practice Test Questions Answers Updated 468 Questions
NEW QUESTION 82
The following commands are configured on the S3610 switch:
qos map-table dot1p-lp
import 1 export 5
interface Ethernet1/0/6
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 to 2
qos priori4
interface Ethernet1/0/7
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 to 2
qos gts queue 5 cir 12600 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. 10Mbps packets are forwarded normally
- B. portions partial misconfigured
- C. E1 / 0 /.9 outbound message packets 802.1p Priority Level 1
- D. Packet traffic shaping is 1950kbps for forwarding
- E. E1 / 0 /.9 outgoing packets 802.1p preferred precedence 5
Answer: A,C
NEW QUESTION 83
Which of the following statements about IPSec and IKE is incorrect is ________ .( Choose one or more )
- A. IKE only responsible for the IPSec established to provide a security key, not participate and IPSec SA negotiations
- B. IKE only with IPSec in conjunction
- C. After IPSec SA is established, data forwarding has nothing to do with IKE
- D. IPSec can only establish a security association through cooperation with IKE
Answer: A,B,D
NEW QUESTION 84
The calling UA sends a request message and receives a 2000K response from the called UA .How can the calling UA cancel the request ?
- A. Li ie the called UA sent BE message
- B. Li ie the called UA sent Back message
- C. No law revoked just please request
- D. Li ie the called UA send Cancel message
Answer: C
NEW QUESTION 85
In the MSR router configuration commands as follows:
qos pql 1 queue top queue-length 1024
qos pql 1 inbound-interface GigabitEthernet0/0 queue top
qos pql 1 protocol ip tcp 1000 queue top
qos pql 1 protocol ip tcp 1001 queue middle
qos pql 1 protocol ip tcp 1002 queue normal
qos pql 1 protocol ip tcp 1003 queue bottom
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos lr outbound cir 10000 cbs 625000 ebs 0
qos pq pql 1
From the interface G0 / 0 into the only access port G0 / 1 forwarding traffic directed include the destination port, respectively 1000 , 1001 , 1002 and 1003 of the TCP packet flow rates of 5Mbps , the other port no flow, then the following statements is correct is ______ ( Choose one or more )
- A. Head of port 1001 of 5Mbps TCP packets into the Middle queues are forwarded
- B. destination port of 1003 of 5Mbps TCP packets into the Top queue forward portion
- C. destination port of 1002 of 5Mbps TCP packets into the Top queue forward portion
- D. feature set is incorrect
- E. destination port of 1003 of 5Mbps TCP packets enter Bottom queues are discarded
- F. Head of port 1000 of 5Mbps TCP packets into the Top queues are forwarded
- G. destination port of 1002 of 5Mbps TCP packets enter Normal queues are discarded
Answer: B,C
NEW QUESTION 86
Which of the following statements about SOA and IToIP is correct is ____ .
- A. SOA solutions to the requirements of IT infrastructure integration, unified web-based technology to build IT infrastructure platform.
- B. SOA is based on the network, eliminates the information gap caused by heterogeneous systems, integrates various services such as storage, security, and multimedia, and realizes the componentization and resourceization of IT infrastructure.
- C. The IToIP solution embodies the core idea of SOA .
- D. IToIP allows flexible, fast and efficient construction of enterprise intelligent applications, and can quickly adapt to changes in enterprise business processes.
Answer: C,D
NEW QUESTION 87
The key indicators used to measure network transmission capacity are
- A. wide band ( Bandwidth )
- B. swallow spit amount ( Throughput )
- C. shaking motion ( the Jitter )
- D. When the delay ( Dela )
Answer: A,B
NEW QUESTION 88
In BGP MPLS VPN of networking, P devices need to support Which of the following features ?
- A. RD
- B. Private network MPLS label
- C. Public network MPLS label
- D. RT
Answer: A,B,C,D
NEW QUESTION 89
The ______ in the data packet can be used to distinguish data streams for access control.
- A. advantage with the source / destination of the IP addresses
- B. Lee with source / object MAC address
- C. Lee with URL information
- D. Lee with the source / destination port numbers
Answer: A,B,C,D
NEW QUESTION 90
The following regarding L the SR provided label switched on for the apparatus ( the SWAP ) operation statement is correct _______ .
- A. When the message arrives at the LSR , the MPLS label value carried in the message is changed to the out label of the corresponding label forwarding entry
- B. When the message arrives at the LSR , the MPLS label value carried in the message is changed to the incoming label of the corresponding label forwarding entry
- C. When the message arrives at the LSR , compare the MPLS label value carried in the message with the out-label entry in the label forwarding table
- D. When the message arrives at the LSR , compare the MPLS label value carried in the message with the incoming label entry in the label forwarding table
Answer: A,D
NEW QUESTION 91
The following information about the AH ( the Authentication Header , Authentication Header ) and the ESP ( Encapsulating Securlt Paload , the Encapsulating Security Payload ) described right there ______ .( Choose one or more )
- A. two who can be used at the same time
- B. two who can provide confidentiality protection
- C. two who can provide data origin authentication and optional anti-replay service
- D. two who can provide data integrity protection
Answer: A,C,D
NEW QUESTION 92
How will the packets belonging to the same FEC be processed in the MPLS network ?
- A. a packet passes LSR perform independent processing apparatus, the packet destination is IP address is different from the forwarding path may be different
- B. in LSR on the same label forwarding entry to forward
- C. In the whole MPLS in the same network will be the LSP forwarding
- D. In entering the MPLS network of LER are mapped on the same the MPLS label
Answer: B,C,D
NEW QUESTION 93
Among the following VPN technologies, those belonging to the third layer VPN are ____ .( Choose one or more )
- A. BGP/MPLS VPN
- B. IPSec VPN
- C. L2TP VPN
- D. VLL
Answer: A,B
NEW QUESTION 94
In the SIP network, which of the following devices belong to UA?
- A. IP phone
- B. SIP server
- C. language voice gateway
- D. connected to a common voice on the gateway PSTN phone
Answer: A,C
NEW QUESTION 95
Please add the correct parameters in the following PPPoE Cllent configuration:
Answer:
Explanation:
110
NEW QUESTION 96
There are a large number of two-way video and voice communication needs between branches and headquarters of a company, if you want to choose a broadband access to connect branch offices and headquarters, the following options are the most ideal of a _____ .
- A. ADSL
- B. EPON
- C. APON/BOPN
Answer: B
NEW QUESTION 97
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