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2021 Nov 400-101 ccie dumps free download:
Q181. What are the three HDLC operating modes? (Choose three.)
A. normal response
B. asynchronous balanced
C. synchronous response
D. asynchronous response
E. normal balanced
F. synchronous balanced
Answer: A,B,D
Q182. Which is the way to enable the control word in an L2 VPN dynamic pseudowire connection on router R1?
A. R1(config)# pseudowire-class cw-enable
R1(config-pw-class)# encapsulation mpls
R1(config-pw-class)# set control-word
B. R1(config)# pseudowire-class cw-enable
R1(config-pw-class)# encapsulation mpls
R1(config-pw-class)# enable control-word
C. R1(config)# pseudowire-class cw-enable
R1(config-pw-class)# encapsulation mpls
R1(config-pw-class)# default control-word
D. R1(config)# pseudowire-class cw-enable
R1(config-pw-class)# encapsulation mpls
R1(config-pw-class)# control-word
Answer: D
Explanation:
The following example shows how to enable the control word in an AToM dynamic pseudowire connection:
Device(config)# pseudowire-class cw-enable
Device(config-pw-class)# encapsulation mpls
Device(config-pw-class)# control-word
Device(config-pw-class)# exit
Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mpls/command/mp-cr-book/mp-a1.html
Q183. Refer to the exhibit.
Which two conditions can cause this error message to be displayed on the console? (Choose two.)
A. The EtherChannel is configured as desirable on both ends.
B. The port-channel on the adjacent device is misconfigured.
C. There is a speed and duplex mismatch on interface fa0/12.
D. The EtherChannel is configured as auto on one of the interfaces.
Answer: B,C
Q184. Refer to the exhibit.
Which BGP feature is being used?
A. fast session deactivation
B. graceful restart
C. PIC
D. graceful shutdown
Answer: A
Q185. Which three parameters must match to establish OSPF neighbor adjacency? (Choose three.)
A. the process ID
B. the hello interval
C. the subnet mask
D. authentication
E. the router ID
F. the OSPF interface priority
Answer: B,C,D
Avant-garde 400-101 ccie dumps free download:
Q186. Refer to the exhibit.
Traffic from CE1 to CE2 is traveling through the core instead of through R1. All the PE routers have a similar configuration, and BGP peering and extended-community meshing are configured correctly.
Which configuration change routes the traffic through R1?
A)
B)
C)
D)
A. Exhibit A
B. Exhibit B
C. Exhibit C
D. Exhibit D
Answer: A
Q187. Which two issues is TCP Sequence Number Randomization designed to prevent? (Choose two.)
A. DDOS attacks
B. OS fingerprinting
C. man-in-the-middle attacks
D. ARP poisoning
E. Smurf attack
Answer: B,C
Q188. When you enable the MPLS Multi-VRF feature, which two supported routing protocols can be used to exchange routing information between PE routers and CE routers? (Choose two.)
A. BGP
B. RIP
C. OSPF
D. EIGRP
E. IS-IS
Answer: A,B
Q189. You are configuring a DHCPv6 client for a DHCPv6 server with the prefix delegation feature. Which option is a result of the interface configuration when you enter the command ipv6 address autoconfig default?
A. a static IPv6 default route pointing to the upstream DHCP server
B. a static IPv6 default route pointing to the upstream DHCP relay
C. a static IPv6 default route pointing to the upstream router
D. a temporary stateless address, formed from the EUI-64 bit address and the prefix from the route advertisement of the upstream router
Answer: A
Q190. What are two benefits of NVI? (Choose two.)
A. It provides scalability by maintaining a NAT table on every interface.
B. It can dynamically create a static route to the NAT pool for translation.
C. It supports the use of route maps for policy-based NAT.
D. It supports the use of a single interface for translations.
E. It injects a route into the existing routing protocol that directs translation to the NAT pool.
Answer: A,B