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Q341. Refer to the exhibit. 

If the remaining configuration uses default values, what is the expected output of the show mls qos queue-set command? 

A) 

B) 

C) 

D) 

A. Exhibit A 

B. Exhibit B 

C. Exhibit C 

D. Exhibit D 

Answer:

Explanation: 

mls qos queue-set output qset-idthreshold queue-id drop-threshold1 drop-threshold2 reserved-threshold maximum-threshold 

Configure the WTD thresholds, guarantee the availability of buffers, and configure the maximum memory allocation for the queue-set (four egress queues per port). 

By default, the WTD thresholds for queues 1, 3, and 4 are set to 100 percent. The thresholds for queue 2 are set to 200 percent. The reserved thresholds for queues 1, 2, 3, 

and 4 are set to 50 percent. The maximum thresholds for all queues are set to 400 percent. 

. For qset-id , enter the ID of the queue-set specified in Step 2. The range is 1 to 2. 

. For queue-id , enter the specific queue in the queue-set on which the command is performed. The range is 1 to 4. 

. For drop-threshold1 drop-threshold2 , specify the two WTD thresholds expressed as a percentage of the queue’s allocated memory. Th e range is 1 to 3200 percent. 

. For reserved-threshold , enter the amount of memory to be guaranteed (reserved) for the queue expressed as a percentage of the allocated memory. The range is 1 to 100 percent. 

. For maximum-threshold , enable a queue in the full condition to obtain more buffers than are reserved for it. This is the maximum memory the queue can have before the packets are dropped if the common pool is not empty. The range is 1 to 3200 percent 

Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/1 2-2_55_se/configuration/guide/3750xscg/swqos.html 


Q342. Which statement about the spanning-tree portfast feature on the switch is true? 

A. If an interface is enabled for portfast receives BDPU, the port goes through the spanning-tree listening, learning, and forwarding states. 

B. If an interface is enabled for portfast receives BDPU, the port does not go through the spanning-tree listening, learning, and forwarding states. 

C. If an interface is enabled for portfast receives BDPU, the port is shut down immediately. 

D. If an interface is enabled for portfast receives BDPU, the port goes into the spanning-tree inconsistent state. 

Answer:


Q343. Which statement is true about MLD? 

A. MLD v1 gives hosts the ability to receive multicast packets from specific source addresses. 

B. All MLD messages are sent with a link-local IPv6 source address of FF02::D. 

C. The multicast address field is cleared to zero when sending an MLD report message. 

D. MLD is used by IPv6 routers to discover multicast listeners on a directly attached link. 

Answer:

Explanation: 

IPv6 Multicast Listener Discovery (MLD) is used by IPv6 devices to discover multicast listeners (nodes that want to receive multicast packets destined for specific multicast addresses) on directly attached links. There are two versions of MLD. MLD version 1 is based on version 2 of the IGMP for IPv4, and MLD version 2 is based on version 3 of the IGMP for IPv4. IPv6 multicast for Cisco software uses both MLD version 2 and MLD version 1. 

Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_lsm/configuration/xe-3s/imc-lsm-xe-3s-book/ipv6-mcast-mld-xe.html 


Q344. Which three features does GETVPN support to improve deployment and scalability? (Choose three.) 

A. configuration of multiple key servers to work cooperatively 

B. allowing traffic to be discarded until a group member registers successfully 

C. local exceptions in the traffic classification ACL 

D. GDOI protocol configuration between group members and the key server 

E. redundant IPsec tunnels between group members and the key server 

F. redundant multicast replication streaming through the use of a bypass tunnel 

Answer: A,B,C 


Q345. Which two statements about the MAC address table space are true? (Choose two.) 

A. You can disable learning on a VLAN to reduce table-space requirements. 

B. When you disable learning on a VLAN with an SVI, IP packet flooding in the Layer 2 domain is also disabled. 

C. Unicast, multicast, and broadcast MAC address filtering is configured globally and disabled by default. 

D. The default setting for static MAC addresses to age out of the MAC address table is 300 seconds. 

E. Turning off MAC learning on VLANs 900 through 1005 disables learning on VLANs 900 through 1001. 

Answer: A,E 


Q346. Which statement describes the native VLAN concept in an ISL trunk? 

A. It is the VLAN ID that is assigned to untagged packets. 

B. It is the VLAN with highest priority. 

C. It is the default VLAN for a trunk. 

D. There is no native VLAN concept in an ISL trunk. 

Answer:

Explanation: 

ISL has no native VLAN concept because it places the entire Ethernet frame in the payload of an ISL frame. Native VLANs is an 802.1Q specific concept 


Q347. DRAG DROP 

Drag and drop the multiprotocol BGP feature on the left to the corresponding description on the right. 

Answer: 


Q348. Which statement about NAT64 is true? 

A. It uses one-to-one mapping between IPv6 addresses and IPv4 addresses. 

B. It requires static address mapping between IPv6 addresses and IPv4 addresses. 

C. It can be used to translate an IPv6 network to another IPv6 network. 

D. It can be configured for stateless and stateful translation. 

Answer:


Q349. A configuration includes the line ip nbar port-map SSH tcp 22 23 443 8080. Which option describes the effect of this configuration line? 

A. It configures NBAR to search for SSH using ports 22, 23, 443, and 8080. 

B. It configures NBAR to allow SSH connections only on ports 22, 23, 443, and 8080. 

C. It enables NBAR to inspect for SSH connections. 

D. It creates a custom NBAR port-map named SSH and associates TCP ports 22, 23, 443, and 8080 to itself. 

Answer:

Explanation: 

The ip nbar-port-map command configures NBAR to search for a protocol or protocol name using a port number other than the well-known port. 

Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_2/qos/command/reference/fqos_r/qrfcmd10.pd f 


Q350. Which three options are characteristics of a Type 10 LSA? (Choose three.) 

A. It is an area-local, opaque LSA. 

B. Data is flooded to all routers in the LSA scope. 

C. It is used for traffic-engineering extensions to OSPF. 

D. It is a link-local, opaque LSA. 

E. Data is flooded only to the routers in the LSA scope that understand the data. 

F. It is used for traffic-engineering extensions to LDP. 

Answer: A,B,C