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140 Cards in this Set

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  • Back
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What is OSI Layer 3?
Network
Between the Data-Link Layer and the Transport Layer
At what OSI Layer does a network hub operate?
The Physical Layer
What is Layer 1?
At what OSI Layer does a Network Switch function at?
The Data-Link Layer, or Layer 2
Older switches, not the newer Layer 3 switches
What are the two sub-layers of the Data-Link Layer?
LLC (Logical Link Control) & MAC (Media Access Control)
One is the MAC sub-layer
What is Layer 5 in the OSI Reference Model?
Session
Between the Transport Layer (Layer 4) and the Presentation Layer (Layer 6)
What is Layer 6 of the OSI Reference Model
Presentation
Between the Session and Application Layers
What port number is used for the SNMP protocol?
Port 161
SNMP is Simple Network Management Protocol
What port number is used for TFTP?
Port 69
TFTP stands for Trivial File Transfer Protocol
What port number is used for POP3?
Port 110
POP stands for Post Office Protocol and is used to download e-mail
What port number is used for SMTP?
Port 25
SMTP stands for Simple Mail Transer Protocol
What is Layer 4 of the OSI Reference Model?
The Transport Layer
Between the Network Layer and the Session Layer
At what OSI Layer does a bridge function at?
The Data-Link Layer, Layer 2
Between the Physical and Network layers
What is Layer 2 of the OSI Reference Model?
The Data-Link Layer
Between the Physical and Network Layers
What is the common term for the IEEE Standard 802.5?
Token Ring
It's not Ethernet
What is the maximum distance allowed for a 10BaseT Network Segment?
100 Meters
10Base2 is 185 Meters, 10Base5 is 500 Meters
Which two types of Backups clear the Archive Bit?
Full and Incremental
Not Differential
What is the Physical Topology of a Token Ring network?
Star
The LOGICAL Topology is a Ring
What is the Logical Topology of a Token Ring network?
Ring
The Physical Topology is a Star
What is the maximum length of a 10Base5 network segment?
500 Meters
It starts with a 5...
What does the "T" stand for in 10BaseT?
Twisted Pair
It's the type of cabeling it uses...
What does CSMA/CD stand for?
Carrier Sense Multiple Access/Collision Detection. It is used in Ethernet network communications.
It's not Collision Avoidance...
What is Layer 1 of the OSI Reference Model?
The Physical Layer
A network hub operates at this layer...
What does OSI stand for?
Open System Interconnect
As in the OSI Reference Model...
What does CSMA/CA stand for?
Carrier Sense Multiple Access/Collision Avoidance
It's not Collision Detection...
Does the IEEE standard 802.11 use CSMA/CD or CSMA/CA?
Collision Detection Multiple Access/Collision Avoidance
Carrier Sense Multiple Access/Collision Detection or Collision Avoidance?
What does DES stand for?
Data-Encryption Standard
It has to do with Security
What type of encryption key does DES use?
A 56-bit encryption key
Security question. DES stands for Data-Encryption Standard
What is the default encryption and security system for Windows 2000?
Kerberos
What does NAT stand for?
Network Addressing Translation
Has to do with Security and Firewalls
What does PPTP stand for?
Point-to-Point Tunneling Protocol
Security
What does SSL stand for?
Secure Sockets Layer
Security
Name two commonly used data encryption methods.
DES (Data-Encryption Standard) and RSA (Rivest, Shamir, and Adleman; named after it's creators)
Two three-letter acronyms
What does ISDN stand for?
Integrated Services Digital Network
What does BRI stand for?
Basic Rate Interface
An ISDN term
What does PRI stand for?
Primary Rate Interface
An ISDN term
How many channels does BRI ISDN consist of?
2 B-Channels, each with 64 Kbps, and 1 D-Channel
BRI stands for Basic Rate Interface
How many channels does PRI ISDN provide?
23 B-Channels, each 64 Kbps, and 1 D-Channel
PRI stands for Primary Rate Interface
Which is faster, PRI ISDN or T-1?
They are roughly equivalant
What does SLIP stand for?
Serial Line Internet Protocol
Dial-up protocol
What does PPP stand for?
Point-to-Point Protocol
Dial-up protocol
What is the bandwidth of a T-1 Connection?
1.54 Mbps
What does ATM stand for?
Asynchronous Transfer Mode
WAN information
With what do you terminate Frame Relay?
CSU/DSU
What does CSU/DSU stand for?
Channel Service Unit/Data Service Unit
Has to do with Frame Relay service
What does OPSF stand for?
Open Shortest Path First
Part of the TCP/IP protocol suite
What does RIP stand for?
Routing Information Protocol
Part of both the TCP/IP and IPX/SPX protocol suites
What does POP stand for?
Post Office Protocol
As in POP3, part of the TCP/IP protocol suite
What does EMI stand for?
Electomagnetic Interference
What does IMAP stand for?
Internet Mail Access Protocol
What does ICMP stand for?
Internet Control Message Protocol
Part of the TCP/IP protocol suite
What does HTTP stand for?
HyperText Transfer Protocol
Part of the TCP/IP protocol suite
What port does HTTP use?
Port 80
What does UNC stand for?
Universal Naming Convention
Used with NetBIOS
What TCP/IP utility would you use to test to see if you can see another computer on the network?
Ping
What are the two types of Routing Tables?
Static and Dynamic
How are they built?
What is Crosstalk?
Data on 2 separate media interfering with each other.
What are the 2 types of 802.3 cabling?
Coaxial and Twisted Pair
Generic, not "Cat 5" for example.
How long can a 1000BaseLX network segment be?
550 Meters for Multimode, 5000 Meters for Singlemode
LX stands for Longwave Laser
What physical topology is the easiest to expand?
Star
What is the 802 Ethernet standard for Gigabit?
802.3z
Also called 1000Base<i>x</i>
What is attenuation?
Weakening of a data signal over distance.
What is the IEEE 802.2 standard?
LLC (Logical Link Control)
What does WAP stand for?
Wireless Access Point
Wireless technology
What frequency does IEEE 802.11b operate at?
2.4 GHz
Wireless technology
What are 4 problems with copper cable in networks?
1. Attenuation
2. Crosstalk
3. EMI
4. Signal Tampering
1 has to do with security, the other 3 have to do with interference
What are the 3 types of wireless media?
1. Radio wave
2. InfraRed
3. Microwave
What are the 2 types of Microwave?
1. Terrestial
2. Satellite
What port does HTTPS use?
Port 443
HyperText Terminal Protocol Secure
What port does FTP use?
Port 21
What is OSI Layer 7?
Application
Above the Presentation Layer
What is the maximum distance for a 10Base2 network segment?
185 Meters
Can part of the network still function if there is a break in a Thinnet network?
No
Thinnet is 10Base2
What type of Coaxial cable is used with 10Base5?
RG-8
Also known as Thicknet
What type of media is most resistant to crosstalk and EMI?
Fiber Optic
What type of network does the IEEE standard 802.3 specify?
Ethernet
What type of network does IEEE 802.11 specify?
Wireless
At what OSI Reference Model Layer does a NIC operate at?
Data-link, Layer 2
NIC stands for Network Interface Card or Controller
What is the primary purpose of the Network Layer of the OSI Reference Model?
Routing
At what OSI Layer does the Internet Protocol (IP) operate at?
Network, Layer 3
At what OSI Layer does the Transmission Control Protocol (TCP) operate?
Transport, Layer 4
What type of Routing Table is built <i>automatically</i> using RIP or a similar protocol?
Dynamic
RIP is Routing Information Protocol
What type of connector is used for a 10BaseT network?
RJ-45
What type of connector is used for a telephone or MODEM?
RJ-11
What type of connector is used on a 10Base2 network?
BNC
What type of Routing Table is built manually?
Static Routing Table
What IEEE 802 standard defines Fast Ethernet?
802.3u
Fast Ethernet is also known as 100BaseT
Describe an IPv6 address
8 octet pairs of hexidecimal numbers, separated by colons.
i.e. 42de:75e5:21aa:cdb4:d773:cc21:554f
IPv6 stands for IP (Internet Protocol) version 6
What does FDDI stand for?
Fiber Distributed Data Interface
What type of topology offers the best fault tolerance?
Mesh
At what OSI Layer does UDP operate at?
Transport, Layer 4
UDP stands for User Datagram Protocol
What does UDP stand for?
User Datagram Protocol
Is TCP a connectionless or a connection-oriented protocol?
Connection Oriented
Is IP a connectionless or a connection-oriented protocol?
Connectionless
Is UDP a connectionless or a connection-oriented protocol?
Connectionless
UDP stands for User Datagram Protocol
At what OSI Layer does FTP operate at?
Application, Layer 7
FTP stands for File Transfer Protocol
What does FTP stand for?
File Transfer Protocol
Part of the TCP/IP protocol suite
What does DNS stand for?
Domain Name Service
Part of the TCP/IP protocol suite
What port does DNS use?
Port 53
What method of communication does 1000BaseSX use?
Short Wavelength Laser
Think about Fiber Optic
What type (Category) of cable is used for Fast Ethernet?
Cat 5
Fast Ethernet is also called 100BaseT
Physical topology for Fast Ethernet?
Star
Also called 100BaseT
What is the Logical Topology for Ethernet?
Bus
Physically, it's usually a star, except for Thinnet
What is the physical topology for a 10Base2 network?
Bus
The physical and logical topology are the same for this particular type of network
What does URL stand for?
Uniform Resource Locator
What does WINS stand for?
Windows Internet Name Service
What protocol resolves the IP address to the MAC address?
ARP
What does ARP stand for?
Address Resolution Protocol
Part of the TCP/IP Protocol suite
What does FQDN stand for?
Fully Qualified Domain Name
What does NTP stand for?
Network Time Protocol
Part of the TCP/IP protocol suite
What does NNTP stand for?
Network News Transfer Protocol
Part of the TCP/IP protocol suite
What port does NNTP use?
Port 119
What port does Telnet use?
Port 23
What port does RIP use?
Port 520
RIP stands for Routing Information Protocol
What is the IEEE 802 standard for CSMA/CD?
802.3
Also known as Ethernet
What port does SSH use?
Port 22
SSH stands for Secure Shell Protocol
What does SSH stand for?
Secure Shell Protocol
What port does IMAP4 use?
Port 143
IMAP stands for Internet Message Access Protocol
What port does NTP use?
Port 123
NTP stands for Network Time Protocol
What does RI and RO stand for?
Ring In and Ring Out
In relation to Token Ring
What does Token Ring use instead of a hub?
MSAU (MultiStation Access Unit)
What does MSAU stand for?
MultiStation Access Unit
Sometimes it's referred to as a MAU, but it means the same thing
What range covers the <i>Well-Known Ports</i> of the TCP/IP protocol suite?
0-1023
What range of ports are covered by what's known as the <i>Registered Ports</i>?
1024 - 49151
What range of ports are covered by what's known as <i>Dynamic or Private Ports</i>?
49,152 - 65,535
What is the range of Class A IP addresses?
1.xxx.xxx.xxx - 126.255.255.255
What is the IP address reserved for local loopback?
127.0.0.1
What is the range of Class B IP addresses?
128.xxx.xxx.xxx - 191.255.255.255
What is the range of Class C IP addresses?
192.0.0.0 - 223.255.255.255
What does IANA stand for?
Internet Assigned Numbers Authority
What is the private Class A IP address range?
10.0.0.0 - 10.255.255.255
What is the Class B private IP address range?
172.16.0.0 - 172.31.255.255
What is the Class C private IP address range?
192.168.0.0 - 192.168.255.255
What protocol resolves NetBIOS names to IP addresses?
WINS
What protocol resolves hostnames to IP addresses?
DNS
What file can be used in place of DNS?
HOSTS
What does ICS stand for?
Internet Connection Sharing
What file can be used for NetBIOS name resolutino if a WINS server isn't available?
LMHOSTS
What is the purpose of NAT and ICS?
To translate private network addresses into public network addresses
NAT stands for Network Address Translation and ICS stands for Internet Connection Sharing
Where does the HOSTS file reside if there isn't a DNS server? On the Server or on the Workstations?
Workstations
What does RAS stand for?
Remote Access Service