Exhibit:

The figure shows the typically mode in which a common softswitch access the bearer network. VRRP is enabled on RTA and RTB. In normal cases, RTA is the VRRP master router and RTB is the VRRP is the VRRP salve router. The ETH_trunk is enabled between RTA RTB. IF VRRP is not bounded to BFD and each [parameter uses their default settings, which statement is the true when the upstream link of RTA is faulty?

• A.The ARRP status remain unchanged but the downstream traffic is forwarded from RTB to the MSoft through RTA
• B.The VRRP status remain unchanged but the downstream traffic is directly forwarded from RTB to the MSoftx.
• C.The ARRP status immediately between RTA and RTB and RTB, and RTB becomes the master router.
• D.RTB cannot receive the heartbeat packet from RTA, and both routers become master routers.

Comment: *

Name: *

Email: *

Verification: *

An Ethernet cable connects RTA to RTB through Ethernet 0/0.the OSPF neighbor relationship can be
established without enabling the OSPF authentication functionis enabled, Which of the following statements
about the OSPF relationship between RTA and RTB are true?

• A.Simple authentication is used between RTA and RTB
• B.MD5 authentication is used between RTA and RTB
• C.The OSPF neighbor relationship can be established between RTA and RTB
• D.The OSPF neighbor relationship cannot be established between RTA and RTB due to failure of area
  authentication

Comment: *

Name: *

Email: *

Verification: *

As shown in the figure, a CE requires access to the internet , and PE 1is connected to the gateway.
Configurations on PE 1 are as follows:

PE 1 is connected to the internet gateway through interface 175.311.2 CE and CE 2 cannot ping the interface.
Which of the following statements are true?

• A.NAT translation must be configured on interface pos2/1.0 instead of interface s0./01.0
• B.A default must be configured on CE an CE 2.
• C.A private network route must be configured on the internet gateway.
• D.The public parameter of a static default route must be configured.

Comment: *

Name: *

Email: *

Verification: *

As shown in the figure, DUT stands for the device under test and RTA is used to support the test. Which combination of the following configurations is mandatory for fast convergence?
1. BFD
2. Minimum LSP refreshing interval
3. Most sensitive SPF timer
4. Minimum Hello packet sending interval
5. Minimum LSP sending interval
6. Longest computing time of SPF slices
7. Minimum LSP retransmission interval
8. Minimum LSP generation time
9. Flash-flood
10. GR function
11. Setting cost-style to wide

• A.1, 2, 3, 5, 7, 8, 9
• B.3, 5, 6, 8, 9C.1, 3, 5, 6, 9
• C.3, 5, 6

Comment: *

Name: *

Email: *

Verification: *

Configure VRFs and relevant policies on a PE as follows:

If a route is imported to the routing table of VRF 1, which VRF can the route match?

• A.vrf2
• B.vrf4
• C.vrf3

Comment: *

Name: *

Email: *

Verification: *