Networking

Question 1

Cable internet connection

Answer 1

Modulating analog to digital (from NIC) and vise versa

Question 2

ADSL

Answer 2

Takes signal from NIC and passes to phone line

Download speed faster than upload speed (24 down/3.3 up

Question 3

Dialup

Answer 3

Network with voice telephone lines

56 Kbps connections

Question 4

Basic-rate ISDN

Answer 4

Integrated Services Digital Network

3 channels: two 64 Kbps (B channel) and one 16 Kbps line as controller (D channel)

Question 5

Primary-rate ISDN

Answer 5

Interpreted Services Digital Network

Uses twenty-three 64 Kbps B data channels (1.44 Mbps) and one 64 Kbps D channel for control information

Question 6

FTP

Answer 6

Uses TCP port 21 to transfer files across the Internet

Question 7

SSH

Answer 7

A secure remote management protocol that runs on TCP port 22

Question 8

Telnet

Answer 8

Uses TCP port 23 to perform remote management of a system with the communication unencrypted

Question 9

SMTP

Answer 9

Protocol of the Internet for sending email. Uses TCP port 25

Question 10

DNS

Answer 10

Uses to resolve Fully Qualified Domain Names to IP addresses. Uses UDP port 53

Question 11

HTTP

Answer 11

Uses TCP port 80

Question 12

POP3

Answer 12

Internet protocol uses to read email; TCP port 110

Question 13

IMAP

Answer 13

Newer protocol used for reading email–replacement for POP3. Can get list of messages and download only desired ones (also left on sever); can work OFFLINE; uses TCP port 143

Question 14

HTTPS

Answer 14

TCP port 443

Question 15

RDP

Answer 15

Remote Desktop Protocol: used to carry screen-shot information and keyboard input during remote session. Uses TCP 3389

Question 16

NetBIOS/NetBT

Answer 16

Use of NetBIOS names to connect to resources on TCP/IP network. Uses UDP PORTS 137-139

Question 17

SLP

Answer 17

Service Location Protocol: now known as CIFS; file sharing protocol in Windows.

TCP/UDP port 427

Question 18

AFP

Answer 18

Apple Filing Protocol: file sharing protocol for OS X; TCP port 548

Question 19

DNS

Answer 19

Domain Name System: name resolution protocol that converts Fully Qualified Domain Names (FQDN) to IP addresses

Question 20

LDAP

Answer 20

Lightweight Directory Access Protocol: internet protocol for accessing a directory service

X.500 spec

TCP 389 and UDP 389

Question 21

SNMP

Answer 21

Simple Network Management Protocol: allows you to remotely manage and gather statistics from a device

UDP 161

Question 22

SMB/CIFS

Answer 22

Server Message Blocks: (Common Internet Filing System) underlying protocol for allowing Microsoft systems to share network resources

Uses TCP 445 (NetBIOS-less)

Uses NetBIOS over TCP/IP for backwards compatibility

Question 23

AFP

Answer 23

Apple Filing Protocol: file sharing protocol for OS X

Question 24

NNTP

Answer 24

Network News Transfer Protocol: transmits news artichokes between news server and NNTP news client

Question 25

WEP

Answer 25

Wired Equivalent Privacy * easily breakable * 64-bit key: 40-bit encryption key w/ 24-bit Initialization Vector (IV) OR • 128-bit key: 104-bit encryption key w/ 24-bit IV

Question 26

WPA

Answer 26

Wifi Protected Access * Uses TKIP (Temporal Key Integrity Protocol): 128-bit encryption key w/ 48-bit IV * Every PACKET gets a unique encryption

Question 27

WPA2

Answer 27

* Uses AES (Advanced Encryption Standard) inside CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) * Password keys act as method of authorizing the client * Most secure encryption

Question 28

Which 802 project standard defined Ethernet?

Answer 28

802.3

Question 29

Which 802 project standard defined Token Ring?

Answer 29

802.5

Question 30

Which 802 project standard defined wireless standards?

Answer 30

802.11

Question 31

568A Wiring standard

Answer 31

``` Wire 1: White/Green Stripe Wire 2: Green Wire 3: White/Orange stripe Wire 4: Blue Wire 5: White/Blue stripe Wire 6: Orange Wire 7: White/Brown stripe Wire 8: Brown ```

Question 32

568B Wiring standard

Answer 32

``` Wire 1: White/orange stripe Wire 2: Orange Wire 3: White/green stripe Wire 4: Blue Wire 5: White/blue stripe Wire 6: Green Wire 7: White/brown stripe Wire 8: Brown ```

Question 33

10 BaseT

Answer 33

Typically uses Star topology, can issue hybrid star-bus Primarily uses CAT3 UTP

Question 34

10Base2

Answer 34

Uses Bus, sometime hybrid star bus Thicknet coaxial cabling

Question 35

10Base5

Answer 35

Bus topology Thicknet

Question 36

10Base FL

Answer 36

Used in fiber optic cabling (old)

Question 37

Access method for ALL Ethernet architectures

Answer 37

CSMA/CD

Question 38

100BaseT

Answer 38

Star topology, found in star-bus Primarily CAT5 UTP

Question 39

100BaseFX

Answer 39

Uses fiber optic instead of UTP "Fast Ethernet"

Question 40

1000BaseT

Answer 40

UTP cabling

Question 41

1000BaseSX

Answer 41

Multimode fiber optic cabling SHORT distances

Question 42

1000BaseLX

Answer 42

Single-mode fiber optic cabling LONG distances

Question 43

802.11a

Answer 43

5 GHz 54 Mbps (expect half) 100ft (30 meters) range

Question 44

802.11b

Answer 44

Built on DSSS (Direct Sequence spread spectrum) 2.4Ghz Ushers CSMA/CA: 11 Mbps - expect 6.5 100 ft (30 meter) range

Question 45

802.11g

Answer 45

Update of b 2.4 GHz backward compatible with b 54 Mbps (expect half) 100ft (30 meters) range

Question 46

802.11n

Answer 46

2.4 and/or GHz MIMO technology 200 Mbps or 600 Mbps when multiplexed (expect half)

Question 47

802.11ac

Answer 47

5 GHz Faster than 802n

Question 48

PLC

Answer 48

Power-line communication (Ethernet over Power) IEEE 1901 Up to 500 Mbps