Juniper Juniper Certifications JN0-347 Questions & Answers

• Question 71:

  Click the Exhibit button.

  

  You are establishing a BGP session between R1 and R2. R2 shows 172.24.1.1 as its peer address for R1

  instead .168.100.1.

  Referring to the exhibit, what must be changed in the configuration?

  A. A peer-as statement must be added to R1 in the internal group.

  B. An export policy statement must be added to R1 in the internal group to allow the lo0 address to peer.

  C. A local interface statement with the lo0 address must be added to R1 in the internal group.

  D. A local address statement with the lo0 address must be added to R1 in the internal group.

  Correct Answer: D

• Question 72:

  Click the Exhibit button. Referring to the exhibit, what is the problem?

  

  A. LAG requires more than two member links.

  B. LACP is required for LAG to work.

  C. Aggregated interfaces must be defined under the chassis stanza;

  D. The LAG member interfaces are configured across different line cards.

  Correct Answer: C

  Use the link aggregation feature to aggregate one or more links to form a virtual link or link aggregation group (LAG).

• Question 73:

  Click the Exhibit button. The exhibit shows that Host-1 and Host-2 are attached to the switch and

  associated with IRB irb.1.

  However, traffic sent from Host-1 to Host-2 is not blocked as expected. Why is this problem occurring?

  A. Inter-VLAN traffic cannot be blocked by a router-based filter.

  B. The block-host filter is applied in the wrong direction on theirb.1interface.

  C. The Block-Host-2 term does not contain the MAC address of Host-2.

  D. Intra-VLAN traffic cannot be blocked by a router-based filter.

  Correct Answer: B

  The block-host filter blocks traffic with source address .10.12.102, which is traffic sent from Host-2. It should block traffic from Host-1, with the source address .10.12.101.

• Question 74:

  What kind of filter would be written to protect control traffic destined for the switch?

  A. A filter applied to the default VLAN

  B. A filter applied to the native VLAN

  C. A filter applied to the management interface

  D. A filter applied to the loopback interface

  Correct Answer: D

• Question 75:

  How many bytes of overhead does an IP-IP tunnel add to a packet?

  A. 24 bytes

  B. 28 bytes

  C. 20 bytes

  D. 14 bytes

  Correct Answer: C

  Difference Between GRE and IP-IP Tunnel. Generic Routing Encapsulation (GRE) and IP-in-IP (IPIP) are two rather similar tunneling mechanisms which are often confused. In terms of less overhead, the GRE header is 24 bytes and an IP header is 20 bytes.

• Question 76:

  What BGP attribute is mostly likely to influence a remote AS that you do not peer with?

  A. This is not possible given the local scope of BGP

  B. AS path

  C. MED

  D. Local preference

  Correct Answer: B

• Question 77:

  Click the Exhibit button.

  

  You have an existing Virtual Chassis consisting of five member devices. Member 3 fails and must be replaced. You remove the EX Series switch with a Member ID and install a replacement switch in its place using identical cabling as shown in the exhibit. The replacement's member ID is 6, so the configuration for member ID 3 is not applied to it. Referring to the exhibit, what should have been done before installing the replacement switch?

  A. Reactivate the Virtual Chassis.

  B. Recycle the member ID of the switch being replaced.

  C. Renumber the member IDs.

  D. Clear the Virtual Chassis protocol.

  Correct Answer: B

• Question 78:

  An OSPF hello packet has been sent, but bidirectional communication has not been established. What is the state of the OSPF adjacency?

  A. Down

  B. Init

  C. Exchange

  D. Loading

  Correct Answer: A

  Down is the first OSPF neighbor state. It means that no information (hellos) has been received from this neighbor, but hello packets can still be sent to the neighbor in this state.

• Question 79:

  Click to the exhibit button. Referring to the exhibit, which configuration change is needed for an IS-IS Level 1 adjacency between R1 and R2?

  

  A. Configure the Io0 family ISO address 49.0002.0010.0042.0002.00 on R1.

  B. Disable Level 2 on R2'sge-0/0/1 interface.

  C. Configure the Io0 family ISO address 49.0002.0010.0042.0002.00 on R2.

  D. Enable Level 2 on R1's ge-0/0/1 interface.

  Correct Answer: C

  Level 1 adjacencies can be formed between routers that share a common area number. We need to change ISO addresses so that both routers have the same area number. If we change the ISO address on R2 49.0002.0010.0042.0002.00, both routers will have 0002 as area number. Note: Level 2 adjacency can be formed between routers that might or might not share an area number. Reference: http://www.juniper.net/techpubs/en_US/junos16.1/topics/example/isis-multi-level.html

• Question 80:

  Router-1 and Router-2 need to 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 is supported across the path is 1520 bytes. Which tunneling technology will allow this communication to take place?

  A. GRE tunnel

  B. IPsec VPN transport mode

  C. IPsec VPN tunnel mode

  D. IP-IP tunnel

  Correct Answer: D

  Difference Between GRE and IP-IP Tunnel. Generic Routing Encapsulation (GRE) and IP-in-IP (IPIP) are two rather similar tunneling mechanisms which are often confused. In terms of less overhead, the GRE header is 24 bytes and an IP header is 20 bytes.