Computer Networking

note!Answer: A) Rules of transmitting data
A protocol is a set of rules for transmitting data between devices.

note!Answer: B) Data link
Switches and bridges operate at the data link layer, which handles framing and MAC addressing.

note!Answer: A) Institute of Electrical and Electronics Engineers
IEEE is the Institute of Electrical and Electronics Engineers.

note!Answer: A) Fiber Distributed Data Interface
FDDI is the Fiber Distributed Data Interface, a fiber-optic token ring network standard.

note!Answer: A) File Transfer Protocol
FTP is File Transfer Protocol, used to transfer files between computers.

note!Answer: B) Ring
FDDI uses a dual counter-rotating ring topology.

note!Answer: B) Bus
In a bus topology all stations share a single channel (the backbone cable) for sending and receiving data.

note!Answer: C) Denial of service attack
A denial of service (DoS) attack overwhelms a system with traffic so it cannot serve legitimate users.

note!Answer: A) SMTP
SMTP (Simple Mail Transfer Protocol) is used to send email from a client to a mail server.

note!Answer: C) Protocol
The scheme part of a URL (http) identifies the protocol used.

note!Answer: C) 4 pair
A standard UTP cable with RJ-45 connectors contains 4 twisted pairs (8 wires).

note!Answer: B) Local Area Network
LAN stands for Local Area Network.

note!Answer: A) LAN
A Local Area Network (LAN) connects computers within a single building or small area.

note!Answer: C) 192.168.1.100
192.168.x.x is in the private IP range reserved for local networks.

note!Answer: B) Email address
An email address (like user@domain) is used to send and receive email.

note!Answer: B) Server
Shared information in a network is kept on a central server that clients access.

note!Answer: D) Telephone
A LAN needs cables with RJ-45 connectors, computers and hubs/switches, but not a telephone.

note!Answer: D) A communication device
A modem is a communication device that modulates and demodulates signals for data transmission.

note!Answer: D) No one of the above
BCC stands for Blind Carbon Copy, which is none of the listed options.

note!Answer: C) Both a and b
A LAN card (NIC) both sends and receives data signals on the network.