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Refer to the exhibit.

When monitoring an IPv6 access list, an engineer notices that the ACL does not have any hits and is causing unnecessary traffic to pass through the interface Which command must be configured to resolve the issue?

A.

access-class INTERNET in

A.

access-class INTERNET in

Answers
B.

ipv6 traffic-filter INTERNET in

B.

ipv6 traffic-filter INTERNET in

Answers
C.

ipv6 access-class INTERNET in

C.

ipv6 access-class INTERNET in

Answers
D.

ip access-group INTERNET in

D.

ip access-group INTERNET in

Answers
Suggested answer: C

Refer to the exhibit.

The network administrator configured redistribution on an ASBR to reach to all WAN networks but failed Which action resolves the issue?

A.

The route map must have the keyword prefix-list to evaluate the prefix list entries

A.

The route map must have the keyword prefix-list to evaluate the prefix list entries

Answers
B.

The OSPF process must have a metric when redistributing prefixes from EIGRP.

B.

The OSPF process must have a metric when redistributing prefixes from EIGRP.

Answers
C.

The route map EIGRP->OSPF must have the 10.0.106.0/24 entry to exist in one of the three prefix lists to pass

C.

The route map EIGRP->OSPF must have the 10.0.106.0/24 entry to exist in one of the three prefix lists to pass

Answers
D.

EIGRP must redistribute the 10.0.106.0/24 route instead of using the network statement

D.

EIGRP must redistribute the 10.0.106.0/24 route instead of using the network statement

Answers
Suggested answer: A

Explanation:

In order to use a prefix-list in a route-map, we must use the keyword "prefix-list" in the "match" statement. . For example: match ip address prefix-list WAN_PREFIXES Without this keyword, the router will try to find an access-list with the same name instead.

How does an MPLS Layer 3 VPN function?

A.

set of sites use multiprotocol BGP at the customer site for aggregation

A.

set of sites use multiprotocol BGP at the customer site for aggregation

Answers
B.

multiple customer sites interconnect through service provider network to create secure tunnels between customer edge devices

B.

multiple customer sites interconnect through service provider network to create secure tunnels between customer edge devices

Answers
C.

set of sites interconnect privately over the Internet for security

C.

set of sites interconnect privately over the Internet for security

Answers
D.

multiple customer sites interconnect through a service provider network using customer edge to provider edge connectivity

D.

multiple customer sites interconnect through a service provider network using customer edge to provider edge connectivity

Answers
Suggested answer: D

Explanation:

A Multiprotocol Label Switching(MPLS) Layer 3 Virtual Private Network (VPN) consists of a set of sites that are interconnected by means of an MPLS provider core network. At each customer site, one or more customer edge (CE) routers attach to one or more provider edge (PE) routers.

Reference:

https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-5/lxvpn/configuration/guide/b-l3vpn-cg-asr9000-65x/b-l3vpn-cg-asr9000-65x_chapter_010.pdf

Refer to the exhibit.

Which action resolves the failed authentication attempt to the router?

A.

Configure aaa authorization login command on line vty 0 4

A.

Configure aaa authorization login command on line vty 0 4

Answers
B.

Configure aaa authorization login command on line console 0

B.

Configure aaa authorization login command on line console 0

Answers
C.

Configure aaa authorization console global command

C.

Configure aaa authorization console global command

Answers
D.

Configure aaa authorization console command on line vty 0 4

D.

Configure aaa authorization console command on line vty 0 4

Answers
Suggested answer: C

Explanation:

In the debug output, we see that the Authorization (not Authentication) failed so we need to correct the authorization. In order to enable authorization, we must use the global command "aaa authorization console" first.

Reference:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/security/a1/sec-a1-cr-book/sec-cr-a1.html

A customer reports to the support desk that they cannot print from their PC to the local printer id:401987778. Which tool must be used to diagnose the issue using Cisco DNA Center Assurance?

A.

application trace

A.

application trace

Answers
B.

path trace

B.

path trace

Answers
C.

ACL trace

C.

ACL trace

Answers
D.

device trace

D.

device trace

Answers
Suggested answer: B

When determining if a system is capable of support, what is the minimum time spacing required for a BFD control packet to receive once a control packet is arrived?

A.

Desired Min TX Interval

A.

Desired Min TX Interval

Answers
B.

Detect Mult

B.

Detect Mult

Answers
C.

Required Min RX Interval

C.

Required Min RX Interval

Answers
D.

Required Min Echo RX Interval

D.

Required Min Echo RX Interval

Answers
Suggested answer: C

Explanation:

Desired Min TX Interval: This is the minimum interval, in microseconds, that the local system would like to use when transmitting BFD Control packets, less any jitterapplied. The value zero is reserved.

Required Min Echo RX Interval: This is the minimum interval, in microseconds, between received BFD Echo packets that this system is capable of supporting, less anyjitter applied by the sender. If this value is zero, the transmitting system does not support the receipt of BFD Echo packets.

Reference: https://tools.ietf.org/html/rfc5880

Refer to the exhibit.

Troubleshoot and ensure that branch B only ever uses the MPLS B network to reach HQ. Which action achieves this requirement?

A.

Introduce an AS path filter on branch A routers so that only local prefixes are advertised into BGP

A.

Introduce an AS path filter on branch A routers so that only local prefixes are advertised into BGP

Answers
B.

increase the local preference for all HQ prefixes received at branch B from the MPLS B network to be higher than the local preferences used on the MPLS A network

B.

increase the local preference for all HQ prefixes received at branch B from the MPLS B network to be higher than the local preferences used on the MPLS A network

Answers
C.

Introduce AS path prepending on the branch A MPLS B network connection so that any HQ advertisements from branch A toward the MPLS B network are prepended three times

C.

Introduce AS path prepending on the branch A MPLS B network connection so that any HQ advertisements from branch A toward the MPLS B network are prepended three times

Answers
D.

Modify the weight of all HQ prefixes received at branch B from the MPLS B network to be higher than the weights used on the MPLS A network

D.

Modify the weight of all HQ prefixes received at branch B from the MPLS B network to be higher than the weights used on the MPLS A network

Answers
Suggested answer: A

Explanation:

If we modify the weight, increase local preference or use AS path prepending then we can only make MPLS B prefer over MPLS A. But when MPLS B is down then MPLS A will be used which does not meet the requirement of this question.

Only with AS path filtering we can deny prefixes from certain AS and make sure branch B never uses MPLS A to reach HQ.

Refer to the exhibit.

The OSPF routing protocol is redistributed into the BGP routing protocol, but not all the OSPF routes are distributed into BGP Which action resolves the issue?

A.

Include the word external in the redistribute command

A.

Include the word external in the redistribute command

Answers
B.

Use a route-map command to redistribute OSPF external routes defined in an access list

B.

Use a route-map command to redistribute OSPF external routes defined in an access list

Answers
C.

Include the word internal external in the redistribute command

C.

Include the word internal external in the redistribute command

Answers
D.

Use a route-map command to redistribute OSPF external routes defined in a prefix list.

D.

Use a route-map command to redistribute OSPF external routes defined in a prefix list.

Answers
Suggested answer: C

Explanation:

If you configure the redistribution of OSPF into BGP without keywords, only OSPF intra-area and inter-area routes are redistributed into BGP, by default. You can use the internal keyword along with the redistribute command under router bgp to redistribute OSPF intra- and inter-area routes.

Use the external keyword along with the redistribute command under router bgp to redistribute OSPF external routes into BGP.

-> In order to redistribute all OSPF routes into BGP, we must use both internal and external keywords. The full command would be (suppose we are using OSPF 1): redistribute ospf 1 match internal external Note: The configuration shows match internal external 1 external 2. This is normal because OSPF automatically appends "external 1 external 2" in the configuration. In other words, keyword external = external 1 external 2. External 1 = O E1 and External 2 = O E2.

Reference:

https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5242-bgp-ospf-redis.html

Refer to the exhibit.

PC-2 failed to establish a Telnet connection to the terminal server Which configuration resolves the issue?

A.

Option A

A.

Option A

Answers
B.

Option B

B.

Option B

Answers
C.

Option C

C.

Option C

Answers
D.

Option D

D.

Option D

Answers
Suggested answer: A

Explanation:

In fact in this question both answer A and answer C are correct but we believe answer A is the better choice as it only allows PC-2 to telnet to terminal server. All other hosts are refused to telnet to terminal server via sequence 20.

What statement about route distinguishes in an MPLS network is true?

A.

Route distinguishes make a unique VPNv4 address across the MPLS network.

A.

Route distinguishes make a unique VPNv4 address across the MPLS network.

Answers
B.

Route distinguishers allow multiple instances of a routing table to coexist within the edge router.

B.

Route distinguishers allow multiple instances of a routing table to coexist within the edge router.

Answers
C.

Route distinguishes are used for label bindings

C.

Route distinguishes are used for label bindings

Answers
D.

Route distinguishes define which prefixes are imported and exported on the edge router

D.

Route distinguishes define which prefixes are imported and exported on the edge router

Answers
Suggested answer: A
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