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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. The security relationship between domains in the same domain tree in which one domain grants every other domain in the tree access to its resources and - in turn - that domain can access other domains' resources.
kernel module
two-way transitive trust
multipath
LOS (line-of-sight)
2. A companion protocol to RTP - defined in RFC 3550 by the IETF - RTCP provides feedback on the quality of a call or videoconference to its participants.
ESSID (extended service set identifier)
spread spectrum
hot spot
RTCP (Real-time Transport Control Protocol)
3. A small (usually home) network composed of personal communications devices.
PAN (personal area network)
lpr
pipe
signaling
4. 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.
toll bypass
softphone
GEO (geosynchronous orbit or geostationary orbit)
range
5. A logical receptacle for holding objects with similar characteristics or privileges in an NOS directory. Containers form the branches of the directory tree.
OU (organizational unit)
SSID (service set identifier)
802.16e
H.225
6. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.
reflection
LDAP (Lightweight Directory Access Protocol)
MGC (media gateway controller)
preemptive multitasking
7. On a network following the H.323 standard - a gateway that provides translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols (for example - SS7 on the PSTN).
unified messaging
group
H.323
H.323 gateway
8. The nerve center for networks that adhere to H.323. IT authorize and authenticate terminals and gateways - manage bandwidth - and oversee call routing - accounting - and billing.
ESS (extended service set)
RDN (relative distinguished name)
group
H.323 gatekeeper
9. A special identifier shared by BSSs that belong to the same ESS.
trust relationship
fading
ESSID (extended service set identifier)
member server
10. An access point that provides routing functions.
wireless router
X Window system
Active Directory
mobile
11. The IEEE standard for a wireless networking technique that may issue signals in the 2.4- or 5-GHz band and can achieve actual data throughput between 65 and 600 Mbps. It accomplishes this through several means - including MIMO - channel bonding - and
802.11n
redirect server
VoDSL (voice over DSL)
access point
12. An area of a computer's hard drive that is logically defined and acts as a separate disk drive.
DN (distinguished name)
GUID (globally unique identifier)
partition
printer queue
13. A Session layer call signaling protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for call or videoconference setup between nodes on a VoIP or video-over-IP network - indicating node status - requesting addit
fax gateway
domain model
Webcast
H.225
14. On a network following the H.323 standard - any node that provides audio - visual - or data information to another node.
H.323 terminal
spread spectrum
uplink
Fedora
15. On a SIP network - a server that accepts and responds to requests from user agents and SIP proxy servers for location information on recipients that belong to external domains.
Linux
symmetric multiprocessing
redirect server
registrar server
16. A type of wireless system in which the receiver can be located anywhere within the transmitter's range. This allows the receiver to roam from one place to another while continuing to pick up its signal.
H.323 gateway
user agent client
RTS/CTS (Request to Send/Clear to Send)
mobile
17. A record of a user that contains all of her properties - including rights to resources - password - user name - and so on.
MGCP (Media Gateway Control Protocol)
active scanning
site license
account
18. A protocol used between media gateway controllers and media gateways. It is poised to replace MGCP on modern converged networks - as it supports a broader range of network technologies - including ATM. Also known as H.248.
roaming
MEGACO
narrowband
MIMO (multiple input-multiple output)
19. The provision of telephone service over the Internet.
passive scanning
per seat
station
Internet telephony
20. A type of phone that includes a screen and can decode compressed video and interpret transport and signaling protocols necessary for conducting videoconference sessions.
explicit one-way trust
mobile
fading
video phone
21. 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
ATA (analog telephone adapter)
H.323 terminal
videoconferencing
proxy server
22. On a SIP network - a server that maintains a database containing information about the locations (network addresses) of each user agent in its domain. When a user agent joins a SIP network - it transmits its location information to the SIP registrar
registrar server
802.16e
site license
AIX
23. A network access method used on 802.11 wireless networks. In it - before a node begins to send data it checks the medium. If it detects no transmission activity - it waits a brief - random amount of time - and then sends its transmission. If the node
replication
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
Bluetooth Special Interest Group (SIG)
kernel module
24. A type of antenna that issues and receives wireless signals with equal strength and clarity in all directions. This type of antenna is used when many different receivers must be able to pick up the signal - or when the receiver's location is highly m
radiation pattern
IP telephone
omnidirectional antenna
domain
25. A type of satellite Internet access service in which a subscriber sends and receives data to and from the Internet over the satellite link. This is a symmetrical technology - in which both upstream and downstream throughputs are advertised to reach 4
uplink
redirect server
Administrator
satellite return
26. In Microsoft terminology - a group of interconnected computers that share each others' resources without relying on a central file server.
Linux
workgroup
page file
802.11n
27. A long form of an object's name in Active Directory that explicitly indicates the object name - plus the names of its containers and domains. It includes a DC (domain component) - OU (organizational unit) - and CN (common name).
MGC (media gateway controller)
SIP (Session Initiation Protocol)
DN (distinguished name)
streaming video
28. A computer that provides support for multiple H.323 terminals (for example - several workstations participating in a videoconference) and manages communication between them.
kernel
symmetric multiprocessing
site survey
MCU (multipoint control unit)
29. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.
LDAP (Lightweight Directory Access Protocol)
DN (distinguished name)
explicit one-way trust
namespace
30. Currently - the most popular version of WiMAX. IEEE improved the mobility and QoS characteristics of the technology - making it better suited to VoIP and mobile phone users.
user agent client
802.16e
kernel module
scanning
31. A group of access points and associated stations (or basic service sets) connected to the same LAN.
roaming
explicit one-way trust
ESS (extended service set)
IPTV (IP television)
32. The technique of splitting tasks among multiple processors to expedite the completion of any single instruction.
wireless spectrum
DiffServ (Differentiated Service)
multiprocessing
unified messaging
33. A LAN that uses wireless connections for some or all of its transmissions.
iwconfig
kernel module
schema
WLAN (wireless LAN)
34. A cost-savings benefit that results from organizations completing long-distance telephone calls over their packet-switched networks - thus bypassing tolls charged by common carriers on comparable PSTN calls.
MCU (multipoint control unit)
BSSID (basic service set identifier)
PBX (private branch exchange)
toll bypass
35. An object in an operating system's directory - such as a printer or user - that does not contain other objects.
fax gateway
leaf object
DC (domain component)
branch
36. A type of satellite that orbits the Earth with an altitude between 100 and 900 miles - closer to the Earth's poles than the orbits of either GEO or MEO satellites.
account
H.323
LEO (low Earth orbiting)
BSD (Berkeley Software Distribution)
37. The characteristic of wireless signals that follow a number of different paths to their destination (for example - because of reflection - diffraction - and scattering).
object
multipath
wireless broadband
reflection
38. A service that relies on a DSL connection to transmit packetized voice signals.
H.323
RTP (Real-time Transport Protocol)
VoDSL (voice over DSL)
reflection
39. A file on the hard drive that is used for virtual memory.
virtual memory
H.323
page file
BSD (Berkeley Software Distribution)
40. The computer instructions written in a programming language that is readable by humans.
range
uplink
multipath
source code
41. A means of collectively managing users' permissions and restrictions applied to shared resources.
PBX (private branch exchange)
group
kernel
H.323 gatekeeper
42. In the context of wireless signal propagation - the phenomenon that occurs when an electromagnetic wave encounters an obstruction and splits into secondary waves. The secondary waves continue to propagate in the direction in which they were split. Th
group
radiation pattern
ad hoc
diffraction
43. A method of multiprocessing that splits all operations equally among two or more processors.
fixed
symmetric multiprocessing
reflection
namespace
44. An attribute of an object that identifies the object separately from its related container(s) and domain.
Internet telephony
RTCP (Real-time Transport Control Protocol)
video over IP
RDN (relative distinguished name)
45. The online documentation for any variety of the UNIX operating system. This documentation describes the use of the commands and the programming interface.
wireless gateway
man pages (manual pages)
object
SMB (Server Message Block)
46. Any implementation of UNIX for which the source code is either unavailable or available only by purchasing a licensed copy from Novell (costing as much as millions of dollars).
VoIP (voice over IP)
trust relationship
infrastructure WLAN
proprietary UNIX
47. Another term for the UNIX command interpreter.
VoDSL (voice over DSL)
beacon frame
RTCP (Real-time Transport Control Protocol)
shell
48. A Session layer control protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for controlling a session between two nodes. For example - it ensures that the two nodes are communicating in the same format.
partition
lpr
H.245
802.16
49. A form of filename substitution - similar to the use of wildcards in Windows and DOS.
UPN (user principal name)
file globbing
wireless spectrum
explicit one-way trust
50. The process of copying Active Directory data to multiple domain controllers. This ensures redundancy so that in case one of the domain controllers fails - clients can still log on to the network - be authenticated - and access resources.
VoATM (voice over ATM)
scattering
UPN (user principal name)
replication