[Free] 2019(Nov) EnsurePass Cisco 200-125 Dumps with VCE and PDF 301-310

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Question No.301

Which three statements about static routing are true? (Choose three.)

  1. It uses consistent route determination.

  2. It is best used for small-scale deployments.

  3. Routing is disrupted when links fail.

  4. It requires more resources than other routing methods.

  5. It is best used for large-scale deployments.

  6. Routers can use update messages to reroute when links fail.

Correct Answer: ABC

Question No.302

Which condition does the err-disabled status indicate on an Ethernet interface?

  1. There is a duplex mismatch.

  2. The device at the other end of the connection is powered off.

  3. The serial interface is disabled.

  4. The interface is configured with the shutdown command.

  5. Port security has disabled the interface.

  6. The interface is fully functioning.

Correct Answer: E

Question No.303

Which command sets and automatically encrypts the privileged enable mode password?

  1. Enable password c1sc0

  2. Secret enable c1sc0

  3. Password enable c1sc0

  4. Enable secret c1sc0

Correct Answer: D

Question No.304

Which command is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols?

  1. transport type all

  2. transport output all

  3. transport preferred all

  4. transport input all

Correct Answer: D

Question No.305

If all OSPF routers in a single area are configured with the same priority value, what value does a router use for the OSPF router ID in the absence of a loopback interface?

  1. the IP address of the first Fast Ethernet interface

  2. the IP address of the console management interface

  3. the highest IP address among its active interfaces

  4. the lowest IP address among its active interfaces

  5. the priority value until a loopback interface is configured

Correct Answer: C


Ordinarily the loopback interface would be selected as the router ID. In the event that no loopback interface is configured, the router ID will be the first active interface that comes up on the router. If that particular interface has more then one IP address, then the highest address will be selected as the Router ID.

Question No.306

Which three statements about link-state routing are true? (Choose three.)

  1. Routes are updated when a change in topology occurs.

  2. Updates are sent to a multicast address by default.

  3. OSPF is a link-state protocol.

  4. Updates are sent to a broadcast address.

  5. RIP is a link-state protocol.

  6. It uses split horizon.

Correct Answer: ABC

Question No.307

Which two statements about IPv6 router advertisement messages are true? (Choose two.)

  1. They use ICMPv6 type 134.

  2. The advertised prefix length must be 64 bits.

  3. The advertised prefix length must be 48 bits.

  4. They are sourced from the configured IPv6 interface address.

  5. Their destination is always the link-local address of the neighboring node.

Correct Answer: AB

Question No.308

Which command can you execute to set the user inactivity timer to 10 seconds?

  1. SW1(config-line)#exec-timeout 0 10

  2. SW1(config-line)#exec-timeout 10

  3. SW1(config-line)#absolute-timeout 0 10

  4. SW1(config-line)#absolute-timeout 10

Correct Answer: A

Question No.309

Which command can you enter to verify that a BGP connection to a remote device is established?

  1. show ip bgp summary

  2. show ip community-list

  3. show ip bgp paths

  4. show ip route

Correct Answer: A

Question No.310

Which three circumstances can cause a GRE tunnel to be in an up/down state? (Choose three.)

  1. The tunnel interface IP address is misconfigured.

  2. The tunnel interface is down.

  3. A valid route to the destination address is missing from the routing table.

  4. The tunnel address is routed through the tunnel itself.

  5. The ISP is blocking the traffic.

  6. An ACL is blocking the outbound traffic.

Correct Answer: BCD


Normally, a GRE Tunnel interface comes up as soon as it is configured and it stays up as long as there is a valid tunnel source address or interface which is up. The tunnel destination IP address must also be routable. This is true even if the other side of the tunnel has not been configured.

This means that a static route or PBR forwarding of packets via the GRE tunnel interface remains in effect even though the GRE tunnel packets do not reach the other end of the tunnel.

Before GRE keepalives were implemented, there were only three reasons for a GRE tunnel to shut down:



There is no route to the tunnel destination address. The interface that anchors the tunnel source is down.


The route to the tunnel destination address is through the tunnel itself.

These three rules (missing route, interface down and mis-routed tunnel destination) are problems local to the router at the tunnel endpoints and do not cover problems in the intervening network. For example, these rules do not cover the case in which the GRE tunneled packets are successfully forwarded, but are lost before they reach the other end of the tunnel. This causes data packets that go through the GRE tunnel to be quot;black holedquot;, even though an alternate route that uses PBR or a floating static route via another interface is potentially available. Keepalives on the GRE tunnel interface are used in order to solve this issue in the same way as keepalives

are used on physical interfaces.

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