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NETWORK+ Terms > NETWORK+ Terms S's > Flashcards

NETWORK+ Terms S's Flashcards

1
Q

A momentary drop in the

voltage provided by a power source

A

sag

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2
Q

The SC connector
is a type of connector used with
fiber cabling.

A

SC connector

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3
Q

A
basic file-copying protocol that uses
Secure Shell (SSH) technology to
provide security to the transfer.

A

SCP (Secure Copy Protocol)

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4
Q 
A DSL implementation
that offers the same
speeds for uploads and downloads.
It is not widely implemented in the
home/small business environment
and cannot share a phone line.
A

SDSL (Symmetrical Digital

Subscriber Line)

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5
Q

A type of
DNS server that gets its zone data
from another DNS name server that
has authority in that zone.

A

secondary name server

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6
Q 
A log located in the
Windows Event Viewer that provides
information on audit events
that the administrator has determined
to be security-related. These
events include logons, attempts to
log on, attempts to access areas that
are denied, and attempts to log on
outside normal hours.
A

Security log

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7
Q

A physical section of a

network.

A

segment

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8
Q 
A network node that fulfills
service requests for clients. Usually
referred to by the type of service it
performs, such as file server, communications
server, or print server.
A

server

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9
Q

An
application run from a network
share rather than from a copy
installed on a local computer.

A

server-based application

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10
Q

A network
operating system dedicated to
providing services to workstations,
or clients. See also client/server networking.

A

server-based networking

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11
Q 
A software update
that fixes multiple known problems
and in some cases provides additional
functionality to an application or
operating system.
A

service pack

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12
Q

How long the dialog

remains open between two nodes

A

session

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13
Q

Layer 5 of the OSI
model, which establishes, manages,
and terminates sessions between
applications on different nodes.

A

session layer

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14
Q 
An implementation of File Transfer
Protocol (FTP) that uses Secure
Shell (SSH) technology to provide
additional authentication and
encryption services for file transfers.
A

SFTP (Secure File Transfer Protocol)

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15
Q 
The infrastructure
component routed directly into an
internetwork’s backbone for optimal
systems access. It provides connectivity
to servers and other shared
systems.
A

shared system

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16
Q

An interface, graphical or
otherwise, that enables a user to
access the functionality of an operating
system.

A

shell

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17
Q

An application layer protocol
designed to establish and maintain
multimedia sessions such as Internet
telephony calls.

A

SIP

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18
Q 
A type of
fiber that uses a single direct beam
of light, thus allowing for greater
distances and increased transfer
speeds. See also MMF.
A

SMF (Single-mode fiber)

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19
Q

An Internet protocol
used for the transfer of email messages
and attachments.

A

SMTP (Simple Mail Transfer

Protocol)

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20
Q

A simple form
of NAT. SNAT maps a private IP
address directly to a static unchanging
public IP address. See also NAT

A

SNAT (Static NAT)

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21
Q 
Provides
network devices with a method to
monitor and control network
devices; manage configurations, statistics
collection, performance, and
security; and report network management
information to a management
console. SNMP is part of the
TCP/IP suite.
A

SNMP (Simple Network

Management Protocol)

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22
Q

A software component
that enables a device to communicate
with, and be contacted by,
an SNMP management system.

A

SNMP agent

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23
Q 
An SNMP utility that
sends an alarm to notify the administrator
that something within the
network activity differs from the
established threshold, as defined by
the administrator.
A

SNMP trap

24
Q 
A record
of information containing data on
DNS zones and other DNS records.
A DNS zone is the part of a domain for which an individual DNS server
is responsible. Each zone contains a
single SOA record.
A

SOA (start of authority)

25
Q

A small network typically serving 1

to 10 users.

A

SOHO (Small Office / Home Office)

26
Q 
A U.S. standard for data
transmission that operates at speeds
up to 2.4Gbps over optical networks
referred to as OC-x, where x is the
level. The international equivalent
of SONET is Synchronous Digital
Hierarchy (SDH).
A

SONET (Synchronous Optical

Network)

27
Q 
The address of
the host that sent the frame. The
source address is contained in the
frame so that the destination node
knows who sent the data
A

source address

28
Q 
A bridge used
in source-route bridging to send a
packet to the destination node
through the route specified by the
sending node.
A

source-route bridge

29
Q 
An instantaneous, dramatic
increase in the voltage input to a
device. Spikes are responsible for
much of the damage done to network
hardware components.
A

spike

30
Q 
A
type of power supply in which the
SPS monitors the power line and
switches to battery power as soon as
it detects a problem. During the
time it takes to switch to battery
power, the computer does not
receive any power and may power
down. This is in contrast to an
online UPS, which constantly provides
battery power.
A

SPS (Standby Power Supply)

31
Q 
An application,
such as Telnet, that enables a session
to be opened on a remote host. SSH
differs from Telnet in that it provides
additional authentication
methods and encryption for data as
it traverses the network. SSH uses
TCP/IP port 22.
A

SSH (Secure Shell)

32
Q 
A
unique client identifier sent over the
WLAN that acts as a simple password
used for authentication
between a wireless client and an
access point. The SSID is used to
differentiate between networks.
Therefore, the client system and the
AP must use the same SSID.
A

SSID (Service Set Identifier)

33
Q 
A
method of securely transmitting
information to and receiving information
from a remote website. SSL
is implemented through HTTPS.
SSL operates at the presentation
layer of the OSI model and uses
TCP/IP port 443.
A

SSL (Secure Sockets Layer)

34
Q

A
standard defined by IEEE 802.1 as
part of STP to eliminate loops in an
internetwork with multiple paths.

A

STA (Spanning Tree Algorithm)

35
Q

A type of physical network
design is which all nodes connect to
a centralized device—in most cases a
network switch.

A

star

36
Q

An IP address
manually assigned to a network
device, as opposed to dynamically
via DHCP

A

static IP address

37
Q 
A routing method in
which all routes must be entered
into a device manually and in which
no route information is exchanged
between routing devices on the
network. Compare with dynamic
routing.
A

static routing

38
Q 
A mechanism used
in flow control that prevents the
sender of data from overwhelming
the receiver. The amount of data
that can be buffered in a static window
is configured dynamically by
the protocol.
A

static window

39
Q

ST refers to a type

of fiber connector.

A

ST connector

40
Q

A
subnetwork of storage devices, usually
found on high-speed networks
and shared by all servers on a network.

A

storage area network (SAN)

41
Q 
A fast-packetswitching
method that produces
higher latency than other switching
methods because the entire contents
of the packet are copied into the
switch’s onboard buffers. CRC calculations
are performed before the
packet can be passed on to the destination
address.
A

store-and-forward

42
Q

Twisted-pair network cable that has
shielding to insulate the cable from
EMI.

A

STP (shielded twisted pair)

43
Q 
A
protocol developed to eliminate the
loops caused by the multiple paths
in an internetwork. STP is defined
in IEEE 802.1.
A

STP (Spanning Tree Protocol)

44
Q 
A privately controlled
segment of the DNS namespace
that exists under other segments of
the namespace as a division of the
main domain. Sometimes also called
a child domain
A

subdomain

45
Q

A logical division of a network,
based on the address to which
all the devices on the network are
assigned

A

subnet

46
Q 
A 32-bit address
used to mask, or screen, a portion of
an IP address to differentiate the
part of the address that designates
the network and the part that designates
the host.
A

subnet mask

47
Q 
The process of using
parts of the node portion of an
assigned IP address to create more
network IDs. Although subnetting
increases the number of network
IDs, it decreases the number of
node addresses available for each
network ID.
A

subnetting

48
Q

The process of
aggregating IP network addresses
and using them as a single network
address range.

A

supernetting

49
Q 
A voltage increase that is
less dramatic than that of a spike but
can last much longer. Sometimes
called a swell. The opposite of a
brownout.
A

surge

50
Q 
An inexpensive
and simple device placed between a
power outlet and a network component
to protect the component from
spikes and surges. Also known as a
surge suppressor.
A

surge protector

51
Q

A virtual circuit dynamically established
on demand to form a dedicated
link. It is broken when transmission
is complete.

A

SVC (switched virtual circuit)

52
Q

A Layer 2 networking
device that forwards frames based
on destination addresses.

A

switch

53
Q

A message sent to initiate a
TCP session between two devices.
The full term is synchronization
packet.

A

SYN

54
Q 
A digital
signal transmission method that
uses a precise clocking method and
a predefined number of bits sent at a
constant rate.
A

synchronous transmission

55
Q 
A log, accessed
through Event Viewer on Windows
Server platforms, that provides
information and warnings on events
logged by operating system components
and hardware devices. These
events include driver failures, device
conflicts, read/write errors, timeouts,
and bad block errors.
A

system log

NETWORK+ Terms (19 decks)

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