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NEW QUESTION 29
There are two MAC address learning modes in the VPLS: unqualified and qualified. In qualified mode, all VLANs are processed by the same VSI and they share the same broadcast domain or MAC address space.
- A. True
- B. False
Answer: A
NEW QUESTION 30
Which of the following are the features of Huawei IPRAN solution?
- A. One network, one set of O&M, full service bearing, lowest network construction cost and O&M cost; Visualized O&M, Reducing O&M Costs and Simple and Efficient.
- B. Oriented to FMC and Adapted to Future Development Requirements.
- C. Based on a unified router platform and a unified VRP platform, IP RAN is compatible with PTN products.
- D. Supports Layer 3 networking and smooth evolution to LTE, protecting customers' investment.
Answer: A
NEW QUESTION 31
Which of the following are necessary for ISIS to support MPLS TE?
- A. Use command "traffic-eng" to enable ISIS-TE in IS-IS view.
- B. Configuring wide-metric support in ISIS view.
- C. Use command "mpls-te enable" to enable MPLS TE in ISIS view.
- D. Use command "opaque-capability enable" to enable opaque capability in ISIS view.
Answer: A,B
NEW QUESTION 32
Which of the following type of MPLS L2 VPN carries only one label on an MPLS network?
- A. CCC
- B. Kompella
- C. Martini
- D. SVC
Answer: B
NEW QUESTION 33
Which of the following statements about traffic policy In CBQ configuration are correct?
- A. Traffic policy is used to bind traffic classifier with traffic behavior.
- B. Traffic policy can be nested infinitely.
- C. Traffic policy nesting means one QoS policy contains another QoS policy, the behavior of the parent policy Is a sub-policy.
- D. The traffic policy applied to some interface can not be deleted.
Answer: A,C,D
NEW QUESTION 34
Which of the statements about BGP UPDATE message are correct?
- A. BGP uses Update message to implement routing information updating.
- B. One UPDATE message can advertise multiple routes at one time, and the path attributes can be different.
- C. One UPDATE message can include multiple unreachable routes.
- D. One UPDATE message can advertise multiple routes at one time, but the path attributes must be the same.
Answer: A,C,D
NEW QUESTION 35
Which of the following statements regarding the description of LDP is incorrect?
- A. Between two LSRs that run LDP, the LDP session is established and Label/FEC mapping information is exchanged.
- B. In MPLS, LDP is used to implement label distribution, label control and label retention.
- C. The UDP and TCP port number for LDP is 64.
- D. The two routers between which LDP session is established are called LDP Peer.
Answer: A,B,D
NEW QUESTION 36
Interface-based ACLs define rules based on inbound interfaces of packets to filter packets. Run the
"traffic-filter command to invoke the ACL.
- A. True
- B. False
Answer: A
NEW QUESTION 37
Which of the following access modes can be used by leaf nodes in a data center?
- A. ToR Stack Deployment
- B. ToR Deploying an SVF System
- C. Deploying the M-Lag on the ToR
- D. Single-node system deployment
Answer: A,B,C
NEW QUESTION 38
What are the main features of the SDN controller?
- A. Separating the Data Plane and Control Plane
- B. Centralized networking
- C. Upgrading Routing Protocols
- D. Open interface
Answer: A,B
NEW QUESTION 39
The OF election mechanism avoids network resource waste caused by repeated traffic received by CE1 from two PEs. Which of the following NIRI Is used to implement this feature?
- A. Ethernet Segment Route
- B. Inclusive Multicast Route
- C. MAC advertisement route
- D. Ethernet Auto-Discovery route
Answer: D
NEW QUESTION 40
Which of the following MPLS TE components is used to set up tunnel?
- A. Path calculation
- B. Information distribution
- C. Signaling
- D. Packet forwarding
Answer: C
NEW QUESTION 41
Which of the following statements about LAN switch is correct?
- A. LAN switch can detect loop according to the contents of the packet.
- B. LAN switch is transparent for user, it does not modify the data field of the forwarded frame.
- C. LAN switch can modify the data field of the forwarded frame when necessary.
- D. LAN switch can still operate normally even when loop exists.
Answer: B
NEW QUESTION 42
Assuming that a router which only supports IP Precedence receives a packet marked with DSCP, which of the following statements is correct?
- A. All 8 bits of TOS are set to zero.
- B. The last three bits of DSCP are set to 101.
- C. The first three bits of DSCP are mapped into three bits of IP Precedence.
- D. Eight levels of AF in DSCP are mapped into eight levels of IP Precedence.
Answer: C
NEW QUESTION 43
When configuring Diff-Serv in QoS, the edge router on Diff-Serv network classify packets according to its source address, destination address or other parameters, assigning different IP precedence for different packets, while other routers classify packets according to IP precedence.
- A. True
- B. False
Answer: B
NEW QUESTION 44
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