Signal Processing
what is signal processing
Manipulating signals to enhance their quality
What is the physical layer
Foundation of communcation process in a network. physical connection between devices and transmission and reception of raw data over this connection.
What is filtering
Removing unwanted signal components to improve signal quality.
Forward data packets to the appropriate destination within a network
forwarding information to the right receiver in a network
what is COMSEC
Protects confidentiality, integrity, authenticity, and Non-repudiation
Three fundamentals of signal processing
Filtering, Amplification, Modulation
What is the network layer?
Responsible for delivery of packets from the source to destination across networks, logical addressing, routing, forwarding.
How many bits are in a byte
8
Routing
Process of selecting a path for data traffic within a network or across networks.
What is encryption
Process of converting plaintext i(readable date) into ciphertext (encoded data) using a cryptographic algorithm and a key
Stages of receiver operations
Reception, Demodulation, Decryption
Transport layer
Ensures reliable data transfer between devices over a network and Provides end to end communication services, error recover, flow control, and data
Each Octets have how many bits
8
What tier operates in the backround
Lower tier
What is NETSEC
Securing communication networks against unauthorized acess.
What is a transmiter
Converts information into a signal suitable for transmission
What is troubleshooting
Process of reviewing, dignosing, and identifying operation or technical problems within a hardware.
Differnet parts of a IP adresses are called
What is propagation
The process of sky waves bouncing of the ionosphere to travel long distances
The two main parts of IP adressing is
Node or Host part - Identifies specific device within the network
What is the color code of T568A
White/Green, Green, White/Orange, Blue, White/Blue, Orange, White/Brown, Brown.
What are the layers of the OSI model 1-7
Physical, Data Link, Network, Transport, Session, Presentation, Application
What is the color code for T568B
White/Orange, Orange, White/Green, Blue, White/Blue, Green, White/Brown, Brown
The 0E-254 Antenna is used for
reliable communications
what is a subnet
the process of splitting a network into smaller pieces.