JN0-349 Online Practice Questions and Answers

You are a service provider and have multiple customers in a building.

You are installing a new switch that can host all of your customers. However, you would like to ensure that one customer cannot see or broadcast to another customer.

You would also like to have them use a common gateway IP address from the building.

What should be used to provide this access?

A. VLAN

B. private VLAN

C. filter-based VLAN

D. Layer 2 tunneling

Referring to the exhibit, which devices will receive the packet sent by User B?

A. User A and User D

B. User C and User D

C. User C

D. User C, User A, and User D

Which two statements about Layer 2 loop prevention protocols are correct? (Choose two.)

A. RSTP distributes the current tree topology using the root bridge.

B. STP can take 30 to 50 seconds to respond to a topology change.

C. RSTP can take 30 to 50 seconds to respond to a topology change.

D. STP distributes the current tree topology using the root bridge.

Click the Exhibit button.

---- Exhibit Missing ---

Referring to the exhibit, which three statements are correct? (Choose three.)

A. R1 and R3 can form a Layer 2 IS-IS adjacency.

B. R2 and R4 can form a Layer 1 IS-IS adjacency.

C. R3 and R4 can form a Layer 2 IS-IS adjacency.

D. R1 and R3 can form a Layer 1 IS-IS adjacency.

E. R3 and R4 can form a Layer 1 IS-IS adjacency.

Your BGP router receives routes from two upstream ISPs: ISP A and ISP B. In this scenario, which change would you make to prefer routes from ISP A?

A. Set the local-preference attribute for all routes received from ISP A to 200 while all routes received from ISP B use the default local-preference value of 100.

B. Prepend the AS path to all routes received from ISP A while all routes received from ISP B use the default AS path value.

C. Change the MED value for all routes received from ISP A to 1 while all routes from ISP B remain configured with no MED value.

D. Set the local-preference attribute for all routes received from ISP A to 50 while all routes received from ISP B use the default local-preference value of 100.

Your router is learning the 172.25.11.0/24 prefix from both the BGP and OSPF protocols. A routing policy is configured on your device to advertise the prefix to an established BGP peer but the peer is not receiving the prefix. You want to allow the prefix to be advertised to the BGP peer.

What should you do on this router to satisfy this requirement?

A. Enable the automatic removal of peer AS information from the prefix.

B. Enable the advertisement of inactive BGP routes.

C. Enable the automatic removal of private AS numbers from the prefix.

D. Enable the automatic refreshing of BGP routes.

Which two statements about the default load-balancing behavior for the Junos OS are correct? (Choose two.)

A. By default, the Junos OS performs a per-packet load-balancing operation.

B. By default, the Junos OS installs multiple equal-cost next hops in the forwarding table for a destination prefix.

C. By default, the Junos OS selects one of the equal-cost next hops for received destination prefixes.

D. By default, all Packet Forwarding Engine slots are assigned the same hash value on the Junos device.

What are three types of port designation specific to Private VLANs? (Choose three.)

A. Promiscuous ports

B. Transparent ports

C. PVLAN trunk ports

D. Designated ports

E. Isolated ports

Routet-1 and Router-2 must connect through the Internet using a tunneling technology. Hosts that are connected to Router-1 and Router-2 will be sending traffic up to 1500 bytes. The maximum segment size that is supported across the path is 1520 bytes.

Which tunneling technology will allow this communication to take place?

A. IP-IP tunnel

B. GRE tunnel

C. IPsec VPN tunnel mode

D. IPsec VPN transport mode

Which two statements about Layer 2 firewall filters are correct? (Choose two.)

A. You can apply only one firewall filter term per filter.

B. You can apply only one input filter per VLAN.

C. You can apply multiple firewall filter terms per filter.

D. You can apply multiple input filters per VLAN.

Click the Exhibit button.

You are trying to form an IS-IS adjacency between Router A and Router B, but the IS-IS adjacency will not form between the two routers.

Referring to the exhibit, which action would solve this problem?

A. Enable level 1 IS-IS routing on Router A.

B. Enable IS-IS wide metrics on Router A.

C. Enable level 2 IS-IS routing on Router B.

D. Enable IS-IS wide metrics on Router B.

Referring to the exhibit, which two statements are correct? (Choose two.)

A. R2 and R3 can form a Level 1 IS-IS adjacency.

B. R4 and R5 can form a Level 1 IS-IS adjacency.

C. R1 and R5 can form a Level 1 IS-IS adjacency.

D. R3 and R4 can form a Level 2 IS-IS adjacency.

Which two statements about OSPF not-so-stubby areas are correct? (Choose two.)

A. Type 5 LSAs are translated by the ASBR into Type 7 LSAs.

B. Type 7 LSAs are translated by the ABR into Type 5 LSAs.

C. The ASBR originates Type 5 LSAs for redistributed external routes.

D. The ASBR originates Type 7 LSAs for redistributed external routes.

You are troubleshooting OSPF issues on your device. You run a trace log and receive the error shown in the exhibit.

What would case this error?

A. missing route policy

B. stub area mismatch

C. MD5 authentication error

D. subnet mismatch

What are three reasons a router would send out an IS-IS link-state PDU? (Choose three.)

A. A new external route is imported from BGP.

B. The router's link to a neighbor goes down.

C. A new neighbor exists on the link.

D. The cost of a link to an existing neighbor has changed.

E. IS-IS sends link-state PDUs at random intervals.