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计算机考试 | juniper认证考试

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多选题 Firewall filters can be used to accept, discard, or reject packets based on ()

A

protocol type

B

MAC address

C

TCP or UDP port

D

source and destination IP address

单选题 Once the TCP connection is established, which message type initiates the BGP peering process?()

A

Open

B

Active

C

Update

D

Keepalive

E

Notification

单选题 What is the purpose of the OSPF link-state update packet?()

A

describes a change to the OSPF hello timer

B

carries one or more link-state advertisements

C

establishes and maintains neighbor relationships

D

describes the contents of the entire link-state database

单选题 Why would you make a non-backbone area a stub or not-so-stubby area?()

A

to aggregate routes learned from the ABR

B

to lower the cost of routes advertised by the ABR

C

to connect a non-contiguous area to the backbone

D

to decrease the size of the link-state database in that area

多选题 A firewall filter is applied as an input filter on a transit interface. What three types of traffic will this affect? ()

A

inbound traffic transiting the router

B

outbound traffic transiting the router

C

traffic destined to the Routing Engine

D

traffic destined to the interface address on which the filter is applied

单选题 Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?()

A

the router with the lowest priority

B

the router with the highest priority

C

the router with the highest System ID

D

the router with the highest IP address

单选题 What type of OSPF router is responsible for redistributing routes into OSPF?()

A

ABR

B

ASBR

C

internal router

D

backbone router

单选题 What is the first step in BGP route selection?()

A

The local router prefers the route with the shortest as-path.

B

The router first verifies that it has a route to the bgp Next Hop IP address.

C

The local router prefers the route from the peer with the lowest peer id address.

D

The local router prefers the route learned from an ebgp peer over a route learned from an ibgp peer.

单选题 How often are IS-IS Hello packets transmitted?()

A

3 seconds for DIS; 9 seconds for non-DIS

B

9 seconds for DIS; 3 seconds for non-DIS

C

10 seconds for DIS; 3 seconds for non-DIS

D

10 seconds for all routers

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