Get 100% Passing Success With True GB0-391 Exam! [Nov-2021]
H3C GB0-391 PDF Questions - Exceptional Practice To Constructing Secure optimized WANs v2.0
NEW QUESTION 38
Among the following tunneling technologies that do not have the function of data encryption are ______ .
- A. GRE
- B. L2TP
- C. MPLS-VPN
- D. IPSec tunnel
Answer: A,B,C
NEW QUESTION 39
ASPF anti- firewall with features are ______ .
- A. by a strong session logging function
- B. Root according invasive application layer connection based protocol state dynamically determine whether a packet is allowed to pass through the firewall to the internal network, so as to prevent malicious
- C. mention for untrusted sites of the Java Blocking ( the Java blocking ) function
- D. can be detected transmission protocol information, it can be the source and destination addresses and ports, decided to TCP or UDP whether the packet into the internal network through a firewall.
Answer: A,B,C,D
NEW QUESTION 40
Which of the following statements about RT , RD, and private network labels are correct is _______ .
- A. The private network label is used to identify the VPN to which the private network message belongs
- B. RT for each one VPN express their choice and preferences routing instance
- C. RT , RD and private network labels have different functions in BGP MPLS VPN , and they are irreplaceable.
- D. the RD standard identification of the routing information belongs the VPN , mainly play a role when the withdrawn route
Answer: A,B,C,D
NEW QUESTION 41
In a typical PPPoE network, both PPPoE Server and PPPoE Client are MSR routers.If you want PPPoE to work in permanent online mode, which of the following configurations are required ? ( Choose one or more ) .
- A. Configure on PPPoE Client : [HG-Dialer l] pppoe-client dial-bundle-number l
- B. Configure on PPPoE Client : [HG-Dialerl] pppoe-client dial-bundle-number l idle -timeout O
- C. Configure on PPPoE Client : [HG-Ethernet0/0] pppoe-client dial-bundle-number 1
- D. Configure on PPPoE-Server : [RTA-Virtual-Templatel] pppoe- client dial -bundle-number l idle-timeout 65535
- E. the PPPoE Serve, R & lt on the configuration: [the RTA-virtual- Templatel] PPPoE -client-Number Dial-the bundle.1
- F. Configure on PPPoE Server : [RTA- EthernetO/O] pppoe-client dial-bundle-number 1
Answer: C
NEW QUESTION 42
Regarding the echo in the VoIP telephone system, which of the following descriptions are wrong ?
- A. speech voice gateway when performing analog to digital conversion may introduce echo, but can be configured to suppress echo in voice gateway function to reduce this effect
- B. back sound into electrical echo and acoustic echo, a conventional telephone system is mainly due to two electrical echo, four-wire conversion impedance mismatch caused by
- C. In a VoIP network, the echo is related to the choice of encoding.The greater the compression ratio, the greater the relative echo in the network.
- D. language voice gateway equipment itself does not bring new echo, but the lP network brings network latency, increasing the echo time delay, leading to the original feel of the echo in VoIP become energy network Felt echo
Answer: A,C
NEW QUESTION 43
below with respect to the AH ( the Authentication Header , Authentication Header ) and the ESP ( Encapsulating Securit Paload , the Encapsulating Security Payload ) described right there ____ .( Choose one or more )
- A. two who can provide confidentiality protection
- B. two who can be used at the same time
- C. two who can provide data origin authentication and optional anti-replay service
- D. AH cannot provide data integrity protection
Answer: B,C
NEW QUESTION 44
In the conservative label retention mode, illustrated by networking, LSR2 can keep what stage LSR needle to 20.0.0.1/24 tag information that route ?
- A. LSR4
- B. LSR1
- C. LSR5
- D. LSR3
Answer: D
NEW QUESTION 45
Which statement about LR is correct?
- A. Not valid for non- IP packets
- B. so that the flow rate is measured using the token bucket algorithm, would exceed the committed rate of packets into the queue buffer again, it reduces the overall packet loss rate, smooth traffic, introduces additional delay.
- C. It is an active traffic adjustment measure that limits the total rate of packets sent downstream from an interface
- D. bits at the link layer, all packets outgoing from the interface can take effect ( critical packets except packets )
Answer: B,C,D
NEW QUESTION 46
Which statement about the VLAN planning of the EPCN network is correct?
- A. In PUPV mode, all users in the cell share the same business VLAN ID
- B. PUPSPV mode can accurately user and business equipment, each user's business has a corresponding VLAN ID identification
- C. The PSPV method uses the same VLAN to mark all services of the same user , but the service quality cannot be guaranteed.
- D. PUPSPV mode can be precisely designated user service, each service of each user has a corresponding VLAN ID identity
Answer: B,D
NEW QUESTION 47
Which of the following descriptions about L2TP tunnel ( Tunnel ) and L2TP session ( Session ) are correct is ____ .( Choose one or more )
- A. The L2TP session must be carried out after the L2TP tunnel is established
- B. will identify the session ( the Session ID ) is not the same message can reuse the same tunnel
- C. will identify the session ( the Session ID ) is not the same message can not reuse the same tunnel
- D. L2TP session can be carried out before L2TP tunnel is established
Answer: A,B
NEW QUESTION 48
The calling UA sends a request message and receives a 200 OK response from the called UA .How can the calling UA cancel the request ?
- A. No law have requested revocation
- B. Li ie the called UA sent BE message
- C. Li ie the called UA sent Back message
- D. Li ie the called UA send Cancel message
Answer: A
NEW QUESTION 49
In BGP MPLS VPN of networking, PE equipment distributed to end PE device private network which will not carry the following ______ .
- A. RD
- B. Private network MPLS label
- C. Public network MPLS label
- D. RT
Answer: C
NEW QUESTION 50
Congestion occurs in the outbound direction of a certain interface of a certain device.It is observed that the traffic of all its TCP connections continues to oscillate at the same frequency, and the average utilization rate of bandwidth is greatly reduced.In order to solve the problem of low bandwidth utilization, the ______ technology cannot be used .
- A. Tail discard
- B. RED
- C. LR
- D. WRED
Answer: A,C
NEW QUESTION 51
The following VPN technology, belonging to the second layer of VPN are ____ .( Choose one or more )
- A. VLL
- B. IPSec VPN
- C. GRE VPN
- D. VPLS
Answer: A,D
NEW QUESTION 52
The encapsulation format of the voice data transmitted in the VoIP network is
- A. IP the I the I the RTP speech sound data
- B. IP TCP the I the I the I the RTP speech sound data
- C. IP the I the I RTCP UDP the I the I the RTP speech sound data
- D. IP UDP the I the I the I the RTP speech sound data
Answer: D
NEW QUESTION 53
The following part does not belong to the SSL/TSL specification
- A. record protocol
- B. handshake agreement
- C. alert agreement
- D. hello protocol
Answer: D
NEW QUESTION 54
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. The IToIP solution embodies the core idea of SOA .
- C. 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.
- D. IToIP allows flexible, fast and efficient construction of enterprise intelligent applications, and can quickly adapt to changes in enterprise business processes.
Answer: B,D
NEW QUESTION 55
......
GB0-391 dumps - TrainingDump - 100% Passing Guarantee: https://www.trainingdump.com/H3C/GB0-391-practice-exam-dumps.html