Free Download Cisco 350-001 VCE Test Engine Full Version Now (161-170)
QUESTION 161
What s the default stratum clock on a Cisco router, when you see the key word “master”
configured on the NTP line?
A. 1
B. 2
C. 4
D. 6
E. 8
Answer: E
Explanation:
NTP master
The “ntp master” is used to configure the device as a master clock when external time synchronization is not possible; for example, the router is not connected to the Internet. If the network has ntp master configured and it cannot reach any clock with a lower stratum number, the system claims to be synchronized at the configured stratum number, and other systems synchronize to it via NTP. By default, the master clock function is disabled.
When enabled, the default stratum is 8.
In the world of NTP, stratum levels define the distance from the reference clock. A reference clock is a stratum-0 device that is assumed to be accurate and has little or no delay associated with it (typically an atomic clock).
A server that is directly connected to a stratum-0 device is called a stratum-1 server, a server that is directly connected to a stratum-1 is called a stratum-2 server and so on.
http://www.cisco.com/en/US/products/hw/switches/ps1893/ products_command_reference_chapter09186a008007dec6.html
QUESTION 162
Though many options are supported in EIGRPv6, select two options from the below list that are
supported. Choose 2
A. VRF
B. auto-summary
C. per-interface configuration
D. prefix-list support via route-map
E. prefix-list support via distribute-list
Answer: CE
Explanation:
EIGRPv6 does differ from EIGRPv4 in the following ways:
EIGRPv6 is configured (enabled) directly on Cisco routers interfaces; this means EIGRPv6 can be configured (enabled) on a routers interface, without having to configure (assign) a Global IPv6 address on the interface and without using the network command while the router is in router configuration mode.
Also, when configuring (enabling) EIGRPv6 on a Cisco router, the EIGRP routing process must be configured (assigned) with a router-id (by using the router configuration command router-id); if a router-id is not configured (assigned) the EIGRPv6 routing process will not start. The EIGRPv6 routing process also uses a shutdown feature; meaning an EIGRPv6 routing process will not start until the routing process has been placed into no shutdown mode. (by, typing the no shutdown command while the router is in router configuration mode) Also, on Passive Interfaces; EIGRPv6 is not required to be configured. Lastly, EIGRPv6 use the router configuration command distribute-list prefix-list to perform route filtering; and when configuring route filtering the route-map command is not supported.
Below is some additional information on EIGRPv6:
IPv6 EIGRP and IPV4 EIGRP are very similar in concept except for the following differences:
IPv6 is configured on interface basis (like OSPFv3 and RIPng) and networks are advertised based on the interface command -> C is correct.
When configured on interface, IPv6 EIGRP is initially placed in “shutdown” state as with OSPFv3, IPv6 EIGRP require a router-id in IPv4 format Passive interfaces can only be configured in the routing process mode. The need for extra memory resources and supported in IOS 12.4(6)T and later. There is no split horizon in IPv6 because it is possible to get multiple prefixes per interface. Their is no concept of classful routing in IPv6 EIGRP consequently no automatic summary -> B is not correct EIGRPv6 uses the router configuration command “distribute-list prefix-list” to perform route filtering, and when configuring route filtering the “route-map” command is not supported -> E is correct but D is not.
Virtual Routing and Forwarding (VRF) is also supported in EIGRPv6.
QUESTION 163
During the IPv6 address resolution, a node sends a neighbor solicitation message in order to
discover which of these?
A. The Layer 2 multicast address of the destination node
B. The solicited node multicast address of the destination node
C. The Layer 2 address of the destination node based on the destination IPv6 address
D. The IPv6 address of the destination node based on the destination Layer 2 address
Answer: C
Explanation:
Nodes send Neighbor Solicitations to request the link-layer address of a target node while also providing their own link-layer address to the target. Neighbor Solicitations are multicast when the node needs to resolve an address and unicast when the node seeks to verify the reachability of a neighbor.
QUESTION 164
Which one of these statements is true of OSPF type 5 LSAs?
A. They are used to summarize area routes to other areas.
B. They are used in not-so-stubby areas to propagate external routes.
C. They are used to notify areas of the ASBR.
D. They are flooded to all areas except stub areas (external route).
Answer: D
Explanation:
http://www.cisco.com/en/US/tech/tk365/technologies_white_paper09186a0080094e9e.shtml#app a1
QUESTION 165
Which OSPF LSA type does an ASBR use to originate a default route into an area?
A. LSA 1
B. LSA 3
C. LSA 4
D. LSA 5
E. LSA 7
Answer: D
Explanation:
By default, the OSPF router does not generate a default route into the OSPF domain. In order for OSPF to generate a default route, you must use the default-information originate command. With this command, the router will advertise type 5 LSA with a link ID of 0.0.0.0.
http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a00801ec9f0.s html
QUESTION 166
Refer to the exhibit. Routers A and B are directly connected. Given the configuration, how many
EIGRP routes will router B see in its routing table?
A. 0
B. 1
C. 2
D. 3
E. 4
Answer: A
Explanation:
In this question, router A does not advertise its “network 10.10.1.0 0.0.0.255 in the EIGRP process (the network connected with router B) so no EIGRP neighbor relationship is established between two routers. If we use the “show ip route” command on both routers, we just see a directly connected network
10.10.1.0/24 like this:
In the EIGRP process of router A
For your information, even if we use the “network 10.10.1.0 0.0.0.255 we still don’t see any EIGRP route because router A does not have any interfaces belonging to networks 10.1.1.0/24, 10.2.1.0/24, 172.16.2.0/24 -> it will not advertise these networks to router B.
QUESTION 167
Refer to the exhibit. Routers A and B are directly connected and running EIGRP, but they are
unable to form a neighbor relationship. What is the most likely cause?
A. The network statements are misconfigured.
B. The IP address statements are misconfigured.
C. The autonomous system is misconfigured.
D. There is a physical issue with the cable.
Answer: B
Explanation:
To form neighbor relationship in EIGRP, these conditions must be met:
Pass the authentication process
Have the same con figured AS number
Must believe that the source IP address of a received Hello is in that router’s primary connected subnet on that interface
Match K values
The third item means that the primary ip address of the neighbor must be in the same subnet with the primary ip address of the received interface. But in this case the primary ip address of router A is 10.10.10.1/30 and it is not in the same subnet with the primary ip address of router B 10.10.10.6/30 -> no EIGRP neighbor relationship is formed.
QUESTION 168
Refer to the exhibit. Routers A and B are directly connected and running OSPF, but they are
unable to form a neighbor relationship. What is the most likely cause?
A. The routers are not on the same network.
B. The network statements do not match.
C. The process number does not match.
D. The MTU does not match.
E. The OSPF cost does not match.
F. There is a physical issue with the cable.
Answer: D
Explanation:
OSPF sends the interface MTU in a database description packet. If there is a MTU mismatch, OSPF will not form an adjacency and they are stuck in exstart/exchange state. The interface MTU option was added in RFC
2178. Previously, there was no mechanism to detect the interface MTU mismatch. This option was added in Cisco IOS Software Release 12.0.3 and later.
If the router with the higher MTU sends a packet larger that the MTU set on the neighboring router, the neighboring router ignores the packet and the neighbor state remains in exstart. Note: By default, the MTU for Ethernet is 1500 bytes. We can check the OSPF adjacency process with the command “show ip ospf neighbor”.
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080093f0d.shtml
QUESTION 169
Refer to the exhibit. Users on the 199.155.24.0 network are unable to reach the 172.16.10.0
network. What is the most likely solution?
A. Router ISP1 should be configured to peer with router B.
B. Router ISP2 should be configured with no synchronization.
C. Router ISP1 should be configured with no synchronization.
D. Router ISP2 should be configured with no auto-summary.
E. Router ISP1 or IPS2 should be configured with network 176.16.10.0 mask 255.255.255.0.
Answer: E
Explanation:
Neither ISP1 or ISP2 are advertising the 172.16.10.0/24 network therefore neither RouterA or RouterB are aware of how to get to these networks.
QUESTION 170
Two BGP peers connected through a routed firewall are unable to establish a peering relationship.
What could be the most likely cause?
A. BGP peers must be Layer 2-adjacent.
B. EBGP multihop is not configured.
C. The firewall is not configured to allow IP protocol 89.
D. The firewall is not configured to allow UDP 179.
Answer: B
Explanation:
http://www.cisco.com/en/US/docs/security/asa/asa72/configuration/guide/fwmode.html#wp12016
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