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Science
Computer Science
Computer Networks
English for networking and IT security
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Gravity
English for information security, operating systems and computer networks.
Terms in this set (208)
Computer network
A group of computers linked together for data sharing
P2P
The model of communication between equally priviledged nodes
LAN
A computer network that connects devices within a small area
pLAN
A computer network that connects devices within a personal area (e.g. Bluetooth)
WAN
A computer network that extends over a large geographical distance
CAN
A computer network that connects devices within a university campus
MAN
A computer network that covers the area of a city
DHCP
The protocol responsible for assigning basic network configuration (IP addresses etc.)
DNS
The protocol that translates names into IP adresses
ARP
The protocol that converts IP addresses into MAC addresses
MAC
A network card's physical address which is represented by a 48-bit integer
RARP
The protocol that converts MAC address into IP address
OSI
The model that describes network communication layers and links between them
IP address
The logical identifier for a computer or device on a TCP/IP network
ICMP
The protocol responsible for monitoring the state of the network and forwarding errors within it
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Verified questions
COMPUTER SCIENCE
Consider a system running ten I/O-bound task and on CPU-bound task. Assume that the I/O-bound tasks issue an I/O operation once for every millisecond of CPU computing and that each I/O operation takes 10 milliseconds to complete. Also assume that the context-switching overhead is 0.1 millisecond and that all processes are long-running tasks. Describe the CPU utilization for a round-robin scheduler when: a. The time quantum is 1 millisecond b. The time quantum is 10 milliseconds
COMPUTER SCIENCE
Suppose that instead of swapping element A[i] with a random element from the subarray A[i..n], we swapped it with a random element from anywhere in the array: PERMUTE-WITH-ALL (A) 1, n = A.length 2, for i = 1 to n 3, swap A[i] with A[RANDOM(1, n)] Does this code produce a uniform random permutation? Why or why not?
COMPUTER SCIENCE
The process of describing exactly what a computer program will do to solve a problem is called a) design b) implementation c) programming d) specification
COMPUTER SCIENCE
Consider OpenAFS, which is a stateful distributed file system. What actions need to be performed to recover from a server crash in order to preserve the consistency guaranteed by the system?
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