Cisco CCIE Enterprise Wireless 350-401 Questions & Answers

• Question 871:

  Refer to the exhibit. An engineer must configure an ERSPAN session with the remote end of the session 10.10.0.1. Which commands must be added to complete the configuration?

  

  A. Device(config)# monitor session 1 type erspan-source Device(config-mon-erspan-src)# destination Device(config-mon-erspan-src-dst)#no origin ip address 10.10.0.1 Device(config-mon-erspan-src-dst)#ip address 10.10.0.1

  B. Device(config)# monitor session 1 type erspan-destination Device(config-mon-erspan-src)# source Device(config-mon-erspan-src-dst)#origin ip address 10.1.0.1

  C. Device(config)# monitor session 1 type erspan-source Device(config-mon-erspan-src)# destination Device(config-mon-erspan-src-dst)#no origin ip address 10.10.0.1 Device(config-mon-erspan-src-dst)#ip destination address 10.10.0.1

  D. Device(config)# monitor session 1 type erspan-source Device(config-mon-erspan-src)# destination Device(config-mon-erspan-src-dst)#no vrf 1

  Correct Answer: A

  For the source session, we have to configure:

  +

  Unique session ID.

  +

  List of source interfaces or source VLANs that you want to monitor. Not all platforms support every possible source.

  +

  What traffic we want to capture: tx, rx or both.

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  Destination IP address for the GRE tunnel.

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  Origin IP address which is used as the source for the GRE tunnel.

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  Unique ERSPAN flow ID.

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  Optional: you can specify attributes like the ToS (Type of Service), TTL, etc.

  Reference: https://networklessons.com/cisco/ccie-routing-switching-written/erspanThe configuration in the exhibit is missing destination IP adress for the GRE tunnel so we have to add it with the "ip address 10.10.0.1".

• Question 872:

  Which benefit is realized by implementing SSO?

  A. IP first-hop redundancy

  B. communication between different nodes for cluster setup

  C. physical link redundancy

  D. minimal network downtime following an RP switchover

  Correct Answer: D

• Question 873:

  By default, which virtual MAC address does HSRP group 32 use?

  A. 00:5e:0c:07:ac:20

  B. 04:18:20:83:2e:32

  C. 05:5e:5c:ac:0c:32 D. 00:00:0c:07:ac:20

  Correct Answer: D

  The virtual IP resolves to a virtual MAC address in the format 0000.0c07.acxx, xx being the group number in hexadecimal. For example, if you use group number 3, the last part of the MAC address is ac03. 32 is in binary 0010 0000 that's mean in HEX its 2 0

• Question 874:

  Refer to the exhibit.

  

  Assuming that R1 is a CE router, which VRF is assigned to Gi0/0 on R1?

  A. VRF VPN_B

  B. Default VRF

  C. Management VRF

  D. VRF VPN_A

  Correct Answer: B

  There is nothing special with the configuration of Gi0/0 on R1. Only Gi0/0 interface on R2 is assigned to VRF VPN_A. The default VRF here is similar to the global routing table concept in Cisco IOS

• Question 875:

  What Is the difference between the MAC address table and TCAM?

  A. The MAC address table supports partial matches. TCAM requires an exact match.

  B. The MAC address table is contained in TCAM ACL and QoS information is stored in CAM.

  C. Router prefix lookups happen in TCAM. MAC address table lookups happen In CAM.

  D. TCAM is used to make L2 forwarding decisions. CAM is used to build routing tables

  Correct Answer: C

  "TCAM is most useful for building tables for searching on longest matches such as IP routing tables organized by IP prefixes. The TCAM table stores ACL, QoS and other information generally associated with upper-layer processing. As a result of using TCAM, applying ACLs does not affect the performance of the switch."

  https://community.cisco.com/t5/networking-documents/cam-content-addressable-memory-vs-tcam-ternary-content/ta-p/3107938

• Question 876:

  Refer to the exhibit. R1 is able to ping the R3 fa0/1 interface. Why do the extended pings fail?

  

  A. The maximum packet size accepted by the command is 1476 bytes.

  B. R3 is missing a return route to 10.99.69.0/30

  C. R2 and R3 do not have an OSPF adjacency

  D. The DF bit has been set

  Correct Answer: D

  If the DF bit is set, routers cannot fragment packets. From the output below, we learn that the maximum MTU of R2 is 1492 bytes while we sent ping with 1500 bytes.

  Therefore these ICMP packets were dropped.

  Note: Record option displays the address(es) of the hops (up to nine) the packet goes through.

• Question 877:

  What is the JSON syntax that is formed the data?

  

  A. {'Name'';''Bob johnon';''Age': Sevenfive,''Alive'': true,''FavoriteFoods';[''Cereal';''Mustard';''Onions'}}

  B. {'Name'':''Bob johnon':''Age': 75 ''Alive'': true,''Favorite Foods';[''Cereal';''Mustard';''Onions'}}

  C. {'Name'':''Bob johnon':''Age: 75,''Alive: true, FavoriteFoods;[Cereal, Mustard';''Onions}}

  D. {'Name'': 'Bob johnon','Age': 75,'Alive': true,''FavoriteFoods': 'Cereal';'Mustard','Onions'}}

  Correct Answer: B

• Question 878:

  In a Cisco Catalyst switch equipped with two supervisor modules an administrator must temporally remove the active supervisor from the chassis to perform hardware maintenance on it. Which mechanism ensure that the active supervisor removal is not disruptive to the network operation?

  A. NSF/NSR

  B. SSO

  C. HSRP

  D. VRRP

  Correct Answer: B

  Stateful Switchover (SSO) provides protection for network edge devices with dual Route Processors (RPs) that represent a single point of failure in the network design, and where an outage might result in loss of service for customers. Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12- 2SY/configuration/ guide/sy_swcg/stateful_switchover.html

• Question 879:

  In a Cisco SD-Access wireless architecture, which device manages endpoint ID to Edge Node bindings?

  A. fabric control plane node

  B. fabric wireless controller

  C. fabric border node

  D. fabric edge node.

  Correct Answer: A

  SD-Access Wireless Architecture Control Plane Node Closer Look Fabric Control-Plane Node is based on a LISP Map Server / Resolver Runs the LISP Endpoint ID Database to provide overlay reachability information + A simple Host Database, that tracks Endpoint ID to Edge Node bindings (RLOCs)

  +

  Host Database supports multiple types of Endpoint ID (EID), such as IPv4 /32, IPv6 /128* or MAC/48

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  Receives prefix registrations from Edge Nodes for wired clients, and from Fabric mode WLCs for wireless clients

  +

  Resolves lookup requests from FE to locate Endpoints

  +

  Updates Fabric Edge nodes, Border nodes with wireless client mobility and RLOC information

  Reference: https://www.ciscolive.com/c/dam/r/ciscolive/latam/docs/2018/pdf/BRKEWN-2020.pdf

• Question 880:

  Refer to the exhibit. Communication between London and New York is down

  Which command set must be applied to resolve this issue?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

  https://learningnetwork.cisco.com/s/question/0D53i00000Ksyty/tostastns-tottattnt