CCNA Exploration 4.0, CCNA 640-802, CCNA Answers, CCNA Blog

This article contains all three sets of questions.

1. Refer to the exhibit. After entering the commands in the exhibit, the administrator receives a “password required, but none set” message when attempting to connect to S1. What is the problem?

The enable secret password was not set.
S1 does not have login configured on the vty lines.
S1 does not have a password configured for the vty lines.
The crypto key is not properly configured to generate passwords.
The VLAN1 interface has not be enabled with the no shutdown command. [Read more...]

1. Refer to the routing table shown in the exhibit. What is the meaning of the highlighted value 192?

It is the value assigned by the Dijkstra algorithm that designates the number of hops in the network.
It is the value used by the DUAL algorithm to determine the bandwidth for the link.
It is the metric, which is cost.
It is the administrative distance.

2. What is the purpose of the TTL field within an IP packet header?

clears an unreachable route from the routing table after the invalid timer expires
prevents regular update messages from inappropriately reinstating a route that may have gone bad
removes an unreachable route from the routing table after the flush timer expires
limits the period of time or number of hops a packet can traverse through the network before it should be discarded
used to mark the route as unreachable in a routing update that is sent to other routers

[Read more...]

1. Which of the following are required when adding a network to the OSPF routing process configuration? (Choose three.)
network address
loopback address
autonomous system number
subnet mask
wildcard mask
area ID

2. Which of the following are primary functions of a router? (Choose two.)
packet switching
microsegmentation
domain name resolution
path selection
flow control [Read more...]

1. Which of the following are required when adding a network to the OSPF routing process configuration?
network address
loopback address
autonomous system number
subnet mask
wildcard mask
area ID

2. Which of the following are primary functions of a router? (Choose two.)
packet switching
microsegmentation
domain name resolution
path selection
flow control
[Read more...]

1. When must a router serial interface be configured with the clock rate command?

when the interface is functioning as a DTE device
when the interface timers have been cleared
when the connected DTE device is shut down
when the interface is functioning as a DCE device

2. Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A? [Read more...]