150-181

Within a production network, what is the purpose of configuring a switch with a default gateway address?

• Hosts that are connected to the switch can use the switch default gateway address to forward packets to a remote destination.

• A switch must have a default gateway to be accessible by Telnet and SSH.

• The default gateway address is used to forward packets originating from the switch to remote networks.

• It provides a next-hop address for all traffic that flows through the switch.

With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?

• the magnetic field around the adjacent pairs of wire

• the use of braided wire to shield the adjacent wire pairs

• the reflection of the electrical wave back from the far end of the cable

• the collision caused by two nodes trying to use the media simultaneously

The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?

• The switch will have a management interface with the address 172.16.100.1.

• The switch can be remotely managed from a host on another network.

• The switch can communicate with other hosts on the 172.16.100.0 network.

• The switch is limited to sending and receiving frames to and from the gateway 172.16.100.1.

A small advertising company has a web server that provides critical business service. The company connects to the Internet through a leased line service to an ISP. Which approach best provides cost effective redundancy for the Internet connection?

• Add a second NIC to the web server.

• Add another web server to prepare failover support.

• Add a connection to the Internet via a DSL line to another ISP.

• Add multiple connections between the switches and the edge router.

A user executes a traceroute over IPv6. At what point would a router in the path to the destination device drop the packet?

• when the value of the Hop Limit field reaches 255

• when the value of the Hop Limit field reaches zero

• when the router receives an ICMP time exceeded message

• when the target host responds with an ICMP echo reply message

A network administrator enters the service password-encryption command into the configuration mode of a router. What does this command accomplish?

• This command encrypts passwords as they are transmitted across serial WAN links.

• This command prevents someone from viewing the running configuration passwords.

• This command enables a strong encryption algorithm for the enable secret password command.

• This command automatically encrypts passwords in configuration files that are currently stored in NVRAM.

• This command provides an exclusive encrypted password for external service personnel who are required to do router maintenance.

A technician uses the ping 127.0.0.1 command. What is the technician testing?

• the TCP/IP stack on a network host

• connectivity between two adjacent Cisco devices

• connectivity between a PC and the default gateway

• connectivity between two PCs on the same network

• physical connectivity of a particular PC and the network

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

• The cable is not connected properly to the NIC.

• The computer has an invalid IP address.

• The computer has an incorrect subnet mask.

• The computer has an invalid default gateway address.

A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?

• Reboot the device.

• Enter CTRL-Z at the privileged mode prompt.

• Exit global configuration mode.

• Power cycle the device.

• Exit privileged EXEC mode and press Enter.

Which factor determines TCP window size?

• the amount of data to be transmitted

• the number of services included in the TCP segment

• the amount of data the destination can process at one time

• the amount of data the source is capable of sending at one time