NETWORK+ Terms S's Flashcards
(55 cards)
1
Q
A momentary drop in the
voltage provided by a power source
A
sag
2
Q
The SC connector
is a type of connector used with
fiber cabling.
A
SC connector
3
Q
A
basic file-copying protocol that uses
Secure Shell (SSH) technology to
provide security to the transfer.
A
SCP (Secure Copy Protocol)
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)
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
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
7
Q
A physical section of a
network.
A
segment
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
9
Q
An
application run from a network
share rather than from a copy
installed on a local computer.
A
server-based application
10
Q
A network
operating system dedicated to
providing services to workstations,
or clients. See also client/server networking.
A
server-based networking
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
12
Q
How long the dialog
remains open between two nodes
A
session
13
Q
Layer 5 of the OSI
model, which establishes, manages,
and terminates sessions between
applications on different nodes.
A
session layer
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)
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
16
Q
An interface, graphical or
otherwise, that enables a user to
access the functionality of an operating
system.
A
shell
17
Q
An application layer protocol
designed to establish and maintain
multimedia sessions such as Internet
telephony calls.
A
SIP
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)
19
Q
An Internet protocol
used for the transfer of email messages
and attachments.
A
SMTP (Simple Mail Transfer
Protocol)
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)
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)
22
Q
A software component
that enables a device to communicate
with, and be contacted by,
an SNMP management system.
A
SNMP agent
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
A small network typically serving 1
| to 10 users.
SOHO (Small Office / Home Office)
26
```
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).
```
SONET (Synchronous Optical
| Network)
27
```
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
```
source address
28
```
A bridge used
in source-route bridging to send a
packet to the destination node
through the route specified by the
sending node.
```
source-route bridge
29
```
An instantaneous, dramatic
increase in the voltage input to a
device. Spikes are responsible for
much of the damage done to network
hardware components.
```
spike
30
```
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.
```
SPS (Standby Power Supply)
31
```
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.
```
SSH (Secure Shell)
32
```
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.
```
SSID (Service Set Identifier)
33
```
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.
```
SSL (Secure Sockets Layer)
34
A
standard defined by IEEE 802.1 as
part of STP to eliminate loops in an
internetwork with multiple paths.
STA (Spanning Tree Algorithm)
35
A type of physical network
design is which all nodes connect to
a centralized device—in most cases a
network switch.
star
36
An IP address
manually assigned to a network
device, as opposed to dynamically
via DHCP
static IP address
37
```
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.
```
static routing
38
```
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.
```
static window
39
ST refers to a type
| of fiber connector.
ST connector
40
A
subnetwork of storage devices, usually
found on high-speed networks
and shared by all servers on a network.
storage area network (SAN)
41
```
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.
```
store-and-forward
42
Twisted-pair network cable that has
shielding to insulate the cable from
EMI.
STP (shielded twisted pair)
43
```
A
protocol developed to eliminate the
loops caused by the multiple paths
in an internetwork. STP is defined
in IEEE 802.1.
```
STP (Spanning Tree Protocol)
44
```
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
```
subdomain
45
A logical division of a network,
based on the address to which
all the devices on the network are
assigned
subnet
46
```
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.
```
subnet mask
47
```
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.
```
subnetting
48
The process of
aggregating IP network addresses
and using them as a single network
address range.
supernetting
49
```
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.
```
surge
50
```
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.
```
surge protector
51
A virtual circuit dynamically established
on demand to form a dedicated
link. It is broken when transmission
is complete.
SVC (switched virtual circuit)
52
A Layer 2 networking
device that forwards frames based
on destination addresses.
switch
53
A message sent to initiate a
TCP session between two devices.
The full term is synchronization
packet.
SYN
54
```
A digital
signal transmission method that
uses a precise clocking method and
a predefined number of bits sent at a
constant rate.
```
synchronous transmission
55
```
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.
```
system log
