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Test your basic knowledge |
Comptia Network + Wireless NOS Voip
Start Test
Study First
Subjects
:
certifications
,
comptia-network-+
,
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A special identifier shared by BSSs that belong to the same ESS.
Administrator
ESSID (extended service set identifier)
radiation pattern
H.323 gatekeeper
2. A client or server operating system originally developed by researchers at AT&T Bell Laboratories in 1969.
IPTV (IP television)
Solaris
UNIX
AIX
3. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.
MEO (medium Earth orbiting)
scattering
infrastructure WLAN
reflection
4. A program (usually text-based) that accepts and executes system programs and applications on behalf of users. Often - it includes the ability to execute a series of instructions that are stored in a file.
command interpreter
H.323 gateway
map
proxy server
5. An operating system's method of organizing - managing - and accessing its files through logical structures and software routines.
BSD (Berkeley Software Distribution)
replication
file system
registrar server
6. As specified in RFC 2205 - a QoS technique that attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.
redirector
UNIX
RSVP (Resource Reservation Protocol)
thread
7. A type of permission - or right - that is passed down from one group (the parent) to a group within that group (the child).
inherited
wireless
root domain
fax gateway
8. A nonprofit industry association that owns the UNIX trademark.
mobile
Bluetooth Special Interest Group (SIG)
The Open Group
downlink
9. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.
iwconfig
roaming
object
DC (domain component)
10. The process a wireless station undergoes to find an access point.
file system
scanning
leaf object
account
11. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
association
VoDSL (voice over DSL)
hot spot
Fedora
12. A type of antenna that issues wireless signals along a single direction - or path.
directional antenna
reflection
wireless gateway
open source software
13. A proprietary NOS from Apple Computer that is based on a version of UNIX.
fax gateway
802.11g
Mac OS X Server
wireless
14. The memory that is logically carved out of space on the hard drive and added to physical memory (RAM).
wireless broadband
802.16e
Fedora
virtual memory
15. The IEEE standard for a wireless networking technique that uses multiple frequency bands in the 5-GHz frequency range and provides a theoretical maximum throughput of 54 Mbps.
range
open source software
802.11a
PowerPC
16. An access point that provides routing functions and is used as a gateway.
paging
attribute
VoDSL (voice over DSL)
wireless gateway
17. A freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.
root
AIX
Linux
account
18. The relative strength over a three-dimensional area of all the electromagnetic energy an antenna sends or receives.
child domain
kernel
Solaris
radiation pattern
19. The characteristic of wireless signals that follow a number of different paths to their destination (for example - because of reflection - diffraction - and scattering).
multipath
radiation pattern
SPARC
site license
20. The diffusion of a wireless signal that results from hitting an object that has smaller dimensions compared to the signal's wavelength.
pipe
scattering
PBX (private branch exchange)
Internet telephony
21. A service in which a video stored as an encoded file is delivered to a viewer upon his request.
user agent server
video-on-demand
IP-PBX
Fedora
22. A protocol suite codified by the IETF (in RFC 2543) as a set of Session layer signaling and control protocols for multiservice - packet-based networks.
VoIP (voice over IP)
VoATM (voice over ATM)
SIP (Session Initiation Protocol)
forest
23. A transmission technique in which a signal's bits are distributed over an entire frequency band at once. Each bit is coded so that the receiver can reassemble the original signal upon receiving the bits.
DSSS (direct-sequence spread spectrum)
iwconfig
channel bonding
beacon frame
24. A logical receptacle for holding objects with similar characteristics or privileges in an NOS directory. Containers form the branches of the directory tree.
directory
Bluetooth
OU (organizational unit)
softphone
25. A change in a wireless signal's strength as a result of some of the electromagnetic energy being scattered - reflected - or diffracted after being issued by the transmitter.
child domain
fading
ATA (analog telephone adapter)
PAN (personal area network)
26. The exchange of information between the components of a network or system for the purposes of establishing - monitoring - or releasing connections as well as controlling system operations.
DN (distinguished name)
PBX (private branch exchange)
H.323 terminal
signaling
27. An ITU standard that describes an architecture and a suite of protocols for establishing and managing multimedia services sessions on a packet-switched network.
H.323
printer queue
BSD (Berkeley Software Distribution)
virtual memory
28. A pictorial representation of computer functions and elements that - in the case of NOSs - enables administrators to more easily manage files - users - groups - security - printers - and other issues.
H.323
GUI (graphical user interface)
inode (information node)
video over IP
29. The organization of files and directories (or folders) on a disk in which directories may contain files and other directories. When displayed graphically - this organization resembles a treelike structure.
hierarchical file system
directional antenna
child domain
lpr
30. The term used to describe software that is distributed with few restrictions and whose source code is freely available.
map
directory
open source software
CN (common name)
31. A service that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.
per seat
uplink
VoATM (voice over ATM)
paging
32. The real-time reception and transmission of images and audio among two or more locations.
videoconferencing
two-way transitive trust
man pages (manual pages)
ad hoc
33. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.
forest
ESS (extended service set)
Bluetooth Special Interest Group (SIG)
BSD (Berkeley Software Distribution)
34. On a SIP network - a server that accepts requests for location information from user agents - then queries the nearest registrar server on behalf of those user agents. If the recipient user agent is in the SIP proxy server's domain - then that server
LEO (low Earth orbiting)
roaming
reassociation
proxy server
35. The provision of telephone service over a packet-switched network running the TCP/IP protocol suite.
VoIP (voice over IP)
fax gateway
The Open Group
directional antenna
36. The term used to refer to a satellite that maintains a constant distance from a point on the equator at every point in its orbit.
MMC (Microsoft Management Console)
redirect server
GEO (geosynchronous orbit or geostationary orbit)
FoIP (fax over IP)
37. A computer that provides support for multiple H.323 terminals (for example - several workstations participating in a videoconference) and manages communication between them.
MCU (multipoint control unit)
process
beacon frame
channel bonding
38. The software that sits between the client and server in a 3-tier architecture.
root
middleware
domain tree
LDAP (Lightweight Directory Access Protocol)
39. A file system developed by Microsoft and used with its Windows NT - Windows 2000 Server - Windows Server 2003 - and Windows 2008 operating systems.
NTFS (New Technology File System)
IPTV (IP television)
page file
FHSS (frequency hopping spread spectrum)
40. A protocol that enables one system to access files on another system.
file access protocol
scanning
mobile
multipath
41. A computer configured to act like an IP telephone. SS7 (Signaling System 7) | A set of standards established by the ITU for handling call signaling on the PSTN (public switched telephone network).
scanning
PowerPC
softphone
ESS (extended service set)
42. An access point that provides routing functions.
wireless router
ext3
file system
Solaris
43. The process of making a disk partition available.
class
proprietary UNIX
directory
mount
44. A type of phone that includes a screen and can decode compressed video and interpret transport and signaling protocols necessary for conducting videoconference sessions.
video phone
printer queue
station
H.323 gatekeeper
45. A file on the hard drive that is used for virtual memory.
softphone
ext3
page file
MEGACO
46. A wireless signal or path that travels directly in a straight line from its transmitter to its intended receiver.
mobile
beacon frame
printer queue
LOS (line-of-sight)
47. A record of a user that contains all of her properties - including rights to resources - password - user name - and so on.
GNU
ad hoc
account
radiation pattern
48. A collection of H.323 terminals - gateways - and MCUs that are managed by a single H.323 gatekeeper.
iwconfig
per seat
H.323 zone
multitasking
49. Another term for the UNIX command interpreter.
multitasking
group
shell
ext3
50. The core of a UNIX or Linux system. This part of the operating system is loaded and run when you turn on your computer. It mediates between user programs and the computer hardware.
Mac OS X Server
DN (distinguished name)
802.16
kernel