An IPv$6$ address is made up of how many bits?

$32$

$48$

$64$

$128$

$256$

The subnet mask of an IP address does which of the following?

Provides encryption in a TCP$/$IP network

Defines network and host portions of an IP address

Allows automated IP address configuration

Allows users to use a computer$$s name rather than its address

Which of the following is needed if a computer with the IP address $172\mathrm{.}31\mathrm{.}210\mathrm{.}10/24$ wants to communicate with a computer with the IP address $172\mathrm{.}31\mathrm{.}209\mathrm{.}122/24?$

Hub

Router

Switch

Server

Which of the following is a private IP address and can$$t be routed across the Internet?

$192\mathrm{.}156\mathrm{.}90\mathrm{.}100$

$172\mathrm{.}19\mathrm{.}243\mathrm{.}254$

$11\mathrm{.}200\mathrm{.}99\mathrm{.}180$

$221\mathrm{.}24\mathrm{.}250\mathrm{.}207$

$12\mathrm{.}12\mathrm{.}12\mathrm{.}12$

Which command should you use with a dual$-$homed server to make sure the server sends packets out the correct interface?

ipconfig

ping

tracert

route

Which command should you use to configure the primary DNS server on your computer?

ipconfig

netsh

nslookup

arp

Which IP address expressed in CIDR notation has the subnet mask $255\mathrm{.}255\mathrm{.}255\mathrm{.}0?$

$10\mathrm{.}100\mathrm{.}44\mathrm{.}123/24$

$172\mathrm{.}16\mathrm{.}88\mathrm{.}222/16$

$192\mathrm{.}168\mathrm{.}100\mathrm{.}1/26$

$172\mathrm{.}29\mathrm{.}111\mathrm{.}201/18$

Which IP network address expressed in CIDR notation can support a maximum of $1022$ hosts?

$10\mathrm{.}100\mathrm{.}44\mathrm{.}0/24$

$172\mathrm{.}16\mathrm{.}4\mathrm{.}0/22$

$192\mathrm{.}168\mathrm{.}100\mathrm{.}64/26$

$172\mathrm{.}29\mathrm{.}128\mathrm{.}0/18$

The IP address $10\mathrm{.}240\mathrm{.}0\mathrm{.}0/8$ can$$t be assigned to a host. True or False?

True

False

What$$s the term for each grouping of $8$ bits in an IP address?

Quartet

Quintet

Hexadecimal

Octet

When using TCP$/$IP$,$ which of the following must computers on the same logical network have in common? $($Choose all that apply.$)$

Network ID

Host ID

Subnet mask

Computer name

Which of the following IPv$6$ features is an enhancement to IPv$4?($Choose all that apply.$)$

Larger address space

Works at the Internetwork and Transport layers

Built$-$in security

Connectionless communication

Which protocol can configure a computer$$s IP address and subnet mask automatically?

TCP

IP

ARP

DNS

DHCP

How many bits must be reallocated from a host ID to a network ID to create $16$ subnets?

$6$

$4$

$16$

$28$

For the Class C network address $192\mathrm{.}168\mathrm{.}10\mathrm{.}0,$ which of the following subnet masks provides $32$ subnets?

$255\mathrm{.}255\mathrm{.}255\mathrm{.}252$

$255\mathrm{.}255\mathrm{.}255\mathrm{.}248$

$255\mathrm{.}255\mathrm{.}255\mathrm{.}240$

$255\mathrm{.}255\mathrm{.}255\mathrm{.}224$

How many host bits are necessary to assign addresses to $62$ hosts?

$6$

$5$

$4$

$3$

Which IP addressing process enables workstations to use private IP addresses to access the Internet?

Supernetting

NAT

DHCP

Subnetting

When a Windows computer is configured to use DHCP but no DHCP server is available, what type of address is configured automatically for it$?$

PAT

APIPA

NAT

Static

Which of the following represents a valid IPv$6$ address?

$2001$:$345$:abcd:$0$:$230$:$44$

$2001$:$345$:abcd::BEEF:$44$

$2001$:$345$::abcd:$0$:$79$f::$230$:$44$

$2001$:$345$:abcd:$0$:FEED:$230$:$44$

Which of the following is a reason to subnet? $($Choose all that apply.$)$

Networks can be divided into logical groups.

Subnetting eliminates the need for routers.

Subnetting can decrease the size of broadcast domains.

There$$s no need to assign static IP addresses to each computer.

Which of the following IP addresses has $12$ bits in the host ID$?$

$172\mathrm{.}31\mathrm{.}21\mathrm{.}12/16$

$172\mathrm{.}31\mathrm{.}89\mathrm{.}100/12$

$12\mathrm{.}49\mathrm{.}127\mathrm{.}88/8$

$12\mathrm{.}156\mathrm{.}109\mathrm{.}252/20$

You have a server with two NICs, each attached to a different IP network. You$$re having problems communicating with devices on remote networks that send packets to one of the interfaces. The server receives the packets fine, but the server$$s replies never reach the intended destination network. Replies to packets that come in through the other interface seem to reach their destination without any problems. What can you do that will most likely solve the problem?

Configure a second default gateway on the interface exhibiting problems.

Change the default gateway to use the router that$$s on the network of the interface exhibiting problems.

Use the route command to add routes to the networks that aren$$t receiving replies.

Replace the NIC that$$s having problems replying to packets.

You have just changed the IP address from $172\mathrm{.}31\mathrm{.}1\mathrm{.}10/24$ to $172\mathrm{.}31\mathrm{.}1\mathrm{.}110/24$ on a computer named computer$5$ in your domain. You were communicating successfully with this computer from your workstation before you changed the address. Now when you try the command ping computer$5$ from your workstation, you don$$t get a successful reply. Other computers on the network aren$$t having a problem communicating with the computer. Which command might help solve the problem?

arp $-$d

ipconfig $/$flushdns

tracert computer$5$

ping $-6172\mathrm{.}31\mathrm{.}1\mathrm{.}110$

Which address can$$t be assigned to a host computer?

$10\mathrm{.}100\mathrm{.}44\mathrm{.}16/24$

$172\mathrm{.}16\mathrm{.}7\mathrm{.}255/22$

$192\mathrm{.}168\mathrm{.}100\mathrm{.}66/26$

$172\mathrm{.}29\mathrm{.}132\mathrm{.}0/18$

Which IPv$6$ transition technology can be used with NAT routers and has the address prefix $2001$::$/32?$

Teredo

ISATAP

$6$to$4$

IPv$6-$over$-$IPv$4$

How many bits are in the interface ID of an IPv$6$ address?

$32$

$64$

$16$

$48$

What address should you ping if you want to test local IPv$6$ operation but don$$t want to actually send any packets on the network?

$1$::f

$2001$::db$8$

fe$80$::ffff

::$1$