Ucertify offers free demo for passleader 400 101 exam. "CCIE Routing and Switching (v5.0)", also known as 400 101 ccie exam, is a Cisco Certification. This set of posts, Passing the Cisco 400 101 dumps exam, will help you answer those questions. The ccie 400 101 dumps Questions & Answers covers all the knowledge points of the real exam. 100% real Cisco 400 101 pdf exams and revised by experts!
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Q221. Refer to the exhibit.
How many LSDBs will router A have?
A. 0
B. 1
C. 2
D. 3
Answer: D
Q222. You are configuring a DMVPN hub to perform CBWFQ on a per-spoke basis. Which information is used to identify the spoke?
A. the NHRP network ID
B. the spoke tunnel source IP
C. the spoke tunnel interface IP address
D. the NHRP group
Answer: D
Q223. Which three events can cause a control plane to become overwhelmed? (Choose three.)
A. a worm attack
B. processing a stream of jumbo packets
C. a microburst
D. a configuration error
E. a reconvergence failure
F. a device-generated FTP session
Answer: A,D,E
Q224. Which three statements about the differences between Cisco IOS and IOS-XE functionality are true? (Choose three.)
A. Only IOS-XE Software can host applications outside of the IOS context.
B. Only the IOS-XE Services Plane has multiple cores.
C. Only the IOS-XE Data Plane has multiple cores.
D. Only the IOS-XE Control Plane has multiple cores.
E. Only IOS-XE module management integrates with packet processing.
F. Only IOS-XE configuration and control is integrated with the kernel.
Answer: A,B,C
Q225. Consider a network that mixes link bandwidths from 128 kb/s to 40 Gb/s. Which value should be set for the OSPF reference bandwidth?
A. Set a value of 128.
B. Set a value of 40000.
C. Set a manual OSPF cost on each interface.
D. Use the default value.
E. Set a value of 40000000.
F. Set a value of 65535.
Answer: C
Explanation:
Unlike the metric in RIP which is determined by hop count and EIGRP’s crazy mathematical formulated metric, OSPF is a little more simple. The default formula to calculate the cost for the OSPF metric is (10^8/BW). By default the metrics reference cost is 100Mbps, so any link that is 100Mbps will have a metric of 1. a T1 interface will have a metric of 64 so in this case if a router is trying to get to a FastEthernet network on a router that is through a T1 the metric would be 65 (64 +1). You do however have the ability to statically specify a metric on a per interface basis by using the ip ospf cost # where the cost is an integer between 1-65535.
So the big question is why would you want to statically configure a metric? The biggest advantage of statically configuring an OSPF metric on an interface is to manipulate which route will be chosen dynamically via OSPF. In a nut shell it’s like statically configuring a dynamic protocol to use a specific route. It should also be used when the interface bandwidths vary greatly (some very low bandwidth interfaces and some very high speed interfaces on the same router).
Q226. DRAG DROP
Drag and drop the IGMPv2 timer on the left to its default value on the right.
Answer:
Q227. Which two options are actions that EEM can perform after detecting an event? (Choose two.)
A. Place a port in err-disabled.
B. Generate an SNMP trap.
C. Reload the Cisco IOS Software.
D. Send an SMS.
Answer: B,C
Explanation:
action snmp-trap
To specify the action of generating a Simple Network Management Protocol (SNMP) trap when an Embedded Event Manager (EEM) applet is triggered, use the action snmp-trap command in applet configuration mode.
ction reload
To specify the action of reloading the Cisco IOS software when an Embedded Event Manager (EEM) applet is triggered, use the action reload command in applet configuration mode.
Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_2s/feature/guide/fs_eem2.html
Q228. Which BGP feature allows a router to maintain its current BGP configuration while it advertises a different AS number to new connections?
A. local-AS
B. next-hop-self
C. allow-AS in
D. soft reset
Answer: A
Explanation:
The local-AS feature allows a router to appear to be a member of a second autonomous system (AS), in addition to its real AS. This feature can only be used for true eBGP peers. The local-AS feature is useful if ISP-A purchases ISP-B, but ISP-B's customers do not want to modify any peering arrangements or configurations. The local-AS feature allows routers in ISP-B to become members of ISP-A's AS. At the same time, these routers appear to their customers to retain their ISP-B AS number.
Reference: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13761-39.html
Q229. How is the MRU for a multilink bundle determined?
A. It is negotiated by LCP.
B. It is manually configured on the multilink bundle.
C. It is manually configured on all physical interfaces of a multilink bundle.
D. It is negotiated by NCP.
E. It is negotiated by IPCP.
Answer: A
Q230. Which three statements about RIP timers are true? (Choose three.)
A. The default update timer is 30 seconds.
B. The default invalid timer is 180 seconds.
C. The default holddown timer is 180 seconds.
D. The default flush timer is 60 seconds.
E. The default scan timer is 60 seconds.
F. The default hello timer is 5 seconds.
Answer: A,B,C
Explanation:
The routing information protocol uses the following timers as part of its operation:
Update Timer
Invalid Timer
Flush Timer
Holddown Timer
Update Timer
The update timer controls the interval between two gratuitous Response Message. By default the value is 30 seconds. The response message is broadcast to all its RIP enabled interface.
Invalid Timer
The invalid timer specifies how long a routing entry can be in the routing table without being updated. This is also called as expiration Timer. By default, the value is 180 seconds. After the timer expires the hop count of the routing entry will be set to 16, marking the destination as unreachable.
Flush Timer
The flush timer controls the time between the route is invalidated or marked as unreachable and removal of entry from the routing table. By default the value is 240 seconds. This is 60 seconds longer than Invalid timer. So for 60 seconds the router will be advertising about this unreachable route to all its neighbors. This timer must be set to a higher value than the invalid timer.
Hold-down Timer
The hold-down timer is started per route entry, when the hop count is changing from lower value to higher value. This allows the route to get stabilized. During this time no update can be done to that routing entry. This is not part of the RFC 1058. This is Cisco's implementation. The default value of this timer is 180 seconds.
Reference: http://en.wikipedia.org/wiki/Routing_Information_Protocol#Timers