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comp2350 > CH11- Network Operating Systems Intro > Flashcards

CH11- Network Operating Systems Intro Flashcards

1
Q

Who has access to the network: login, username, password

A

Authentication

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2
Q

Granting authenticated users access to resources

A

Authorization

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3
Q

Process where the hypervisor implements virtualization by running on the host computer and controls guest computers

A

bare-metal Virtualization

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4
Q

Text file containing a list of commands, usually from the command line

A

Batch file

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5
Q

An organization’s data is stored off-site on servers of a Host company.

A

Cloud storage

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6
Q

Process where the OS suspends a task to activate another

A

Context switching

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7
Q

Where the OS can’t stop a process until it is finished and gives control back to the CPU

A

Cooperative-multitasking

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8
Q

Group of sectors
Sectors are the smallest space occupied by a file

A

Disk Cluster

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9
Q

Server cluster configuration used for fault tolerance in case of server failure another takes over immediately

A

Fail over cluster

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10
Q

Method where OS stores files on a storage device.

A

File system

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11
Q

Operating system installed on a virtual machine

A

Guest OS

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12
Q

Physical computer where the virtual software is installed

A

Host computer

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13
Q

Where hypervisor implements OS virtualization by being installed on general host OS. The host OS accesses host hardware for guest computer

A

Hosted virtualization

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14
Q

Computer device that can be removed/added while computer/server is running

A

Hot swappable device

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15
Q

Component of virtualization software that creates the virtualization hardware environment, allowing VM’s to share hardware

A

Hypervisor

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16
Q

Server cluster configuration that spreads the work among multiple computers

A

Load balancing cluster

17
Q

Commands typed into a file that run when a user logs on

A

Logon script

18
Q

Scalable-flexible WAN tech that works with any network layer protocol and is independent of data-link layer. Used exclusively in IP networks.

A

Multi protocol label switch (MPLS) - creates connection-oriented virtual circuits assigning labels to each packet

19
Q

Allows 2 or more threads to run concurrently on sep CPU or cores

A

Multi-processing

20
Q

equipped with specialized software performing limited tasks. Packaged with video interfaces so don’t use a keyboard monitor

A

Network appliance

21
Q

Dedicated server device for shared storage for network users

A

NAS (network attached storage)

22
Q

Multitasking where OS controls which process gets access to CPU and for how long

A

Pre-emptive multi-task

23
Q

Program loaded into memory and run by CPU

A

Process

24
Q

OS client component that intercepts resource requests to determine if it’s local or remote

A

Redirector

25
Q

Storage configuration of 2+ disks in a fault tolerance arrangement so data can be preserved and operate

A

RAID (Redundant Array of Independent disks)

26
Q

2+ server configured to operate as a single unit: fail over and load balancing clusters

A

Server cluster

27
Q

Process running in the background providing services to other processes

A

Service - ex. DSN client

28
Q

partial copy of a VM made at a particular moment and used to restore the VM to the snapshot state

A

Snapshot

29
Q

High-speed, high-cost network storage replacing locally attached drives and servers

A

SAN (Storage Area Network)

30
Q

Smallest unit of software that can be scheduled to run

A

Thread

31
Q

Process where CPU’s computing cycles are divided between more then one process

A

Time slicing

32
Q

Files stored on the host computer that represent a VM hard drive

A

Virtual disk

33
Q

Software that mimics a physical computers hardware and Bios

A

Virtual machine

34
Q

A connection accross a public network that uses encryption

A

VPN virtual network

35
Q

Software environ created to emulate computer hardware/Bios allowing multiple OS to run on the same physical computer simultaneously

A

Virtualization

comp2350 (15 decks)

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