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What are the 3 things a computer needs to function?
3. Application Software
What are the 2 categories of application software?
2. General Use
List the 6 common types of computers available?
- 1. Mainframes
- 2. Servers
- 3. Desktops
- 4. Workstations
- 5. Laptops
- 6. Hand-Held Portable Devices
What are the 3 types of commonly used media?
2. Fiber Optics
What are 3 advantages of purchasing a preassembled computer?
1. Lower Cost
2. Can Perform Most Applications
3. No Waiting Period for Assembly
What are 2 advantages of purchasing a custom built computer?
1. Specify exact components that meet user needs
2. Supports higher performance applications
What are the steps to install a peripheral?
1. Connect the peripheral
2. Connect the peripheral to a power source
3. Install the appropriate driver
What are the 2 ways a user can interact with a computer?
1. CLI (Command Line Interface)
2. GUI (Graphical User Interface)
What 2 types of licenses are available for an OS?
1. Commercial License
2. GPL (General Public License)
What are the 3 parts to IP Configuration?
1. IP Address
2. Subnet Mask
3. Default Gateway
What 2 ways can an IP address be configured?
What 2 things must be unique to any computer on a network?
1. Computer Name
2. IP Address
What are the 3 ways a patch can be installed?
What are the 4 main categories of network components?
2. Shared Peripherals
3. Networking Devices
4. Networking Media
What issues do networking protocols help to manage?
- 1. Message Format
- 2. Message Size3. Message Pattern
- 4. Timing
- 5. Encapsulation6. Encoding
What are the 3 rules of engagement with regard to timing?
1. Access Method
2. Flow Control
3. Response Timeout
What are the 3 types of network communication?
Which specific address do NICs use when deciding whether or not to accept a frame?
What is the structure of a Ethernet Frame?
- 1. Preamble
- 2. SFD
- 3. Destination MAC Address
- 4. Source MAC Address
- 5. Length/Type
- 6. Encapsulated Data
- 7. FCS
What are the 3 layers of the hierarchical design model?
1. Application Layer - Hosts, Switches, Hubs
2. Distribution Layer - Routers
3. Core Layer - Servers, High Speed Routers/Switches
What is the difference between a physical and logical address?
Physical Address does not change
What are the 2 parts of an IP Address?
1. Network ID
2. Host ID
What table contains a list of all active ports and the hos MAC address attached to them?
MAC Address Table
What device is typically used as a hosts default gateway?
What table contains the addresses of networks and the best path to reach those networks?
What 3 things are essential to gaining access to the internet?
1. Host Computer
3. IP Address
What does POP stand for?
Point Of Presence
What 2 contract levels do ISPs offer?
1. Home Service
2. Business Class Service
What are the 2 types of data transfer?
1. Asymmetric - Used for home service
2. Symmetric - Used for Business Class Service
What type of device would be required for a user using DSL?
What type of device would be required for an end user connecting through cable?
What 3 types of network cabling are typically used?
1. Twisted Pair
3. Fiber Optic
What are 2 types of interference commonly found within twisted pair cabling?
What are 3 types of twisted pair cabling?
What are the categories of copper cabling and their data speeds?
1. CAT 3 - Voice
2. CAT 5 - 100Mbps
3. CAT 5e - 1000Mbps
4. CAT 6 - 1000Mbps - 10Gbps
What connector is used with UTP cabling?
What connector is used with CAT 3 cable?
What are the 2 types of fiber optic cabling?
2. Single Mode
What type of cable is needed for like devices?
What type of cable is needed for unlike devices?
Straight Through Cable
What are the different cable faults?
3. Split Pair
4. Reversed Pair
What is the reduction in the strength of a signal called?
What is a measurement of crosstalk at the transmitting end of the cable called?
NEXT - Near End Crosstalk
What is a measurement of crosstalk at the receiving end of the cable called?
FEXT - Far End Crosstalk
What are the 6 steps to cable termination?
- 1. Adhere to Standards
- 2. Adhere to Lengths
- 3. Install away from interference EMI
- 4. Follow rules for cable Termination
- 5. Test all cable installations
- 6. Document cable installations
How many binary bits are used in an IP address?
Which portion of an IP address identifies a specific host on a network?
The second portion
A computer has an Ip address of 18.104.22.168 and a subnet mask of 255.255.0.0 which ip addresses can it communicate with?
A & D
How many IP address Classes are there, and what are they?
1. 5 classes
2. A, B, C, D, E
What are the ranges for the 5 IP address classes?
- A: 1-127
- B: 128-191
- C: 192-223
- D: 224-239
- E: 240-255
How many private host addresses are available for each class of address?
A - 16 million
B - 65 thousand
C - 254
How many networks are available for each class of private addresses?
A - 1 network
B - 16 networks
C - 256 networks
What are the private address network ranges?
B: 172.16.0.0 - 172.31.0.0
What is the Localhost/loopback address?
What is the MAC address of a multicast address always start with?
What is the automatic assignment of addressing called?
What kind of IP address is manually assigned?
What is each interface on a router connected to?
A separate network
What is NAT?
Network Address Translation - Allows multiple hosts to connect to the internet as one IP address
What are the layers of the TCP/IP Model?
- Network Access
What are some protocols associated with the application layer?
What does TCP stand for and what layer is it associated with?
1. Transmission Control Protocol
2. Transport Layer
What layer of the TCP/IP Model are segments associated with?
What layer of the TCP/IP Model are packets associated with?
What layer of the TCP/IP model are frames associated with?
Network Access Layer
Which protocol does not require acknowledgement of receipt?
Which protocol requires acknowledgement of receipt?
What protocol do web servers use to transfer data?
What protocol is used when you want to transfer files from one computer to another?
Which 2 port numbers are associated with FTP?
20 & 21
Which protocol is used by a client to send messages to it's local email server?
What port number is associated with SMTP?
What are the 3 categories that port numbers are broken into?
1. Well Known Ports
2. Registered Ports
3. Private Ports
What information is contained in an IP header?
1. Source IP Address
2. Destination IP address
What 3 items are contained in a frame IP header and trailer?
1. Source MAC address
2. Destination MAC address
3. Error Checking Info
In what order does the four step de-encapsulation process of a message by the client occur?
What are the 7 layers in order of the OSI model?
- 7. Application Layer
- 6. Presentation Layer
- 5. Session Layer
- 4. Transport Layer
- 3. Network Layer
- 2. Datalink Layer
- 1. Physical Layer
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