Networking Final Part 15

A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting?

FTP

IP Address

-Contained in layer 3 header -Separated into a network portion and a unique identifier -32 or 128 bits

MAC Address

-Contained in the layer 2 header -Separated into OUI and a unique identifier -48 bits

What are three commonly followed standards for constructing and installing cabling? (Choose three.)

-cable lengths -pinouts -connector types

What are two characteristics shared by TCP and UDP? (Choose two.)

-port numbering -use of checksum

A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.240

A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting?

IMAP

What attribute of a NIC would place it at the data link layer of the OSI model?

MAC address

Refer to the exhibit. What is wrong with the displayed termination?

The untwisted length of each wire is too long

Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?

Time-to-Live