CCNA Assessment Test

Which layer of the OSI model creates a virtual circuit between hosts before transmitting data?

Transport

What are two security appliances that can be installed in a network?

IDS, IPS

Which protocol is used to find an Ethernet address from a known IP address?

ARP

Which command is used to enable RIP on a Cisco router?

router rip

What command do you use to set the enable secret password on a Cisco router to "todd"?

enable secret todd

If you wanted to delete the configuration stored in NVRAM, what would you type?

erase startup

What LAN switch mode keeps CRC errors to a minimum but still has a fixed latency rate?

FragmentFree

Which protocol does Ping use?

ICMP

Which protocol is used to send a destination network unreachable message back to originating hosts?

ICMP

What are two recommended ways of protecting network device configuration files from outside network security threats?

Use a firewall to restrict access from the outside to the network devices and use SSH or another encrypted and authenticated transport to access device configurations

Which additional configuration step is necessary in order to connect to an AP that has SSID broadcasting disabled?

Configure MAC address filtering to permit the client to connect to the AP

Wireless security standards that are defined by WPA:

It specifies the use of dynamic encryption keys that change each time a client establishes a connection and includes authentication by PSK

Which of the following commands will allow you to set your Telnet password on a Cisco router?

line vty 0 4

Which of the following is the valid host range for the subnet on which the IP address 192.168.168.188 - 255.255.255.192 resides?

192.168.168.129-190

How many broadcast domains are created when you segment a network with a 12-port switch?

1

You have 10 users plugged into a hub running 10 Mbps half duplex. There is a server connected to the switch running 10 Mbps half duplex as well. How much bandwidth does each host have the server?

10 Mbps

How many collision domains are created when you segment a network with a 12-port switch?

12

Which encryption type does WPA2 use?

AES-CCMP

Which protocol does DHCP use at the Transport Layer?

UDP

What does the "passive" command provide to dynamic routing protocols?

stops an interface from sending periodic dynamic updates but not from receiving updates

What is a stub network?

A network that has only one entry and exit point

Which class of IP address has the most host addresses available by default?

Class A

Where is a hub specified in the OSI model?

Physical layer

What PDU is at the Transport layer?

Segment

What does the command "line cons 0" allow you to perform next?

Set your console password

what does the command "show controllers s 0" provide?

The type of connection

If your router is facilitating a CSU/DSU, which command do you need to use to provide the router with a 64 kbps serial link?

clock rate 64000

How do you copy a router IOS to a TFTP host?

copy flash tftp

What is the main reason the OSI model was created?

So different networks could communicate

Which of the following commands will set your prompt so you can set your Telnet password on a Cisco router?

line vty 0 4