CSCI 1100 Final Exam ACTUAL Questions and CORRECT Answers
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Course
CSCI 1100
Institution
CSCI 1100
CSCI 1100 Final Exam ACTUAL
Questions and CORRECT Answers
Router - CORRECT ANSWER- manages IP addresses of local machines and connects
you to an outside network, transfers data between two or more networks
Switch - CORRECT ANSWER- connects local machines to each other in a local level,
Acts...
CSCI 1100 Final Exam ACTUAL
Questions and CORRECT Answers
Router - CORRECT ANSWER✔✔- manages IP addresses of local machines and connects
you to an outside network, transfers data between two or more networks
Switch - CORRECT ANSWER✔✔- connects local machines to each other in a local level,
Acts like a traffic signal of data packets on a network, receive data and send to intend nodes
on SAME network (replaces hub)
NIC (Network interface card) - CORRECT ANSWER✔✔- An expansion card that enables a
computer to connect to other computers or to a cable modem to facilitate a high-speed
internet connection.
Wifi (wireless fidelity) - CORRECT ANSWER✔✔- the standard for wireless ethernet
networks
Cat 6a - CORRECT ANSWER✔✔- cable designed for ultrafast ethernet networks that run at
speeds as fast as 10Gbps, FASTEST
Cat 6 - CORRECT ANSWER✔✔- cable designed to achieve data transfer rates that support
a gigabit ethernet network
Cat 5e - CORRECT ANSWER✔✔- cable designed for 100Mbps-wired ethernet networks
that were popular before gigabit ethernet networks became the standard, SLOWEST
LAN - CORRECT ANSWER✔✔- Local area network; a network in which the nodes are
located within a small geographic area
WAN - CORRECT ANSWER✔✔- Wide area network; spans a large physical distance (Ex:
the internet b/c spans entire globe)
802.11 - CORRECT ANSWER✔✔- standard used for routers to connect to a computer
,ARP (Address Resolution Protocol) - CORRECT ANSWER✔✔- Knows the next hop's
hardware/MAC address (used at the local level)
HTTP - CORRECT ANSWER✔✔- The protocol that allows files to be transferred from a
web server so that you can see them on your computer by using a browser
SMS - CORRECT ANSWER✔✔- technology that enables short text messages (up to 160
characters) to be sent over mobile networks
MMS - CORRECT ANSWER✔✔- Multimedia Message Service, a service that allows users
to send messages that include text, sound, images, and video clips to other phones or e-mail
addresses
GPS - CORRECT ANSWER✔✔- Global Positioning System; a system of 21 satellites (plus
3 working spares), built and operated by the U.S. military, that constantly orbit the earth. The
satellites provide information to GPS-capable devices to pinpoint locations on the earth
VOIP - CORRECT ANSWER✔✔- Voice over internet protocol; turns a computer into a
phone (ex: skype)
TCP - CORRECT ANSWER✔✔- delivers messages in order and reliably (ex: emails, web
browsing, etc...); part of the transport layer of the protocol stack
UDP - CORRECT ANSWER✔✔- Fast but non-guaranteed transfers of messages (ex: VOIP,
music streaming, etc...); part of the transport layer of the protocol stack
Network Protocol - CORRECT ANSWER✔✔- defines the FORMAT and the ORDER of
messages exchanged between 2+ communicating entities as well as the ACTIONS taken on
the transmission and/or receipt of a message or other event
Application layer (HTTP) - CORRECT ANSWER✔✔- turns the typed url into a get request
, Transport layer - CORRECT ANSWER✔✔- breaks messages into segments
Network layer (IP) - CORRECT ANSWER✔✔- Routing of datagram from source to
destination; addresses each packet so that it can traverse the network from the sender to the
destination; the source is the IP address. Each packet is given a source ip, a destination ip,
and a data part
Link Layer (Ethernet/LAN) - CORRECT ANSWER✔✔- Data transfer between neighboring
network elements; Addresses each IP packet with hardware/MAC address so that it will be
delivered to the next hop
MAC address - CORRECT ANSWER✔✔- The physical address of an individual device,
which is stored on the NIC
Physical layer - CORRECT ANSWER✔✔- bits "on the wire", actually sends the data across
the network. The other layers get the data ready to be sent
The protocol stack - CORRECT ANSWER✔✔- collection of protocols implementing a
series of layers; Traverses these layers: application > Transport > Network > datalink >
physical
Traverse - CORRECT ANSWER✔✔- Goes from top-down or bottom-up
Collision on wired Ethernet networks - CORRECT ANSWER✔✔- occurs when 2 stations
transmit at the same time; resolved by the stations waiting a short pseudo-random time
interval to retransmit
Digital convergence - CORRECT ANSWER✔✔- Single unifying device to handle media,
Internet, entertainment, and telephony needs; expressed in the range of devices now on the
market (ex: smartphones)
Analog signal - CORRECT ANSWER✔✔- electrical signals where info is translated into
electric pulses of varying amplitude. A continuous signal which represents physical
measurements .(The waves look like a sine wave) i.e. signals not recorded; they're live
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