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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. 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).
map
Internet telephony
H.323 gateway
user agent server
2. An exchange in which a wireless station requests the exclusive right to communicate with an access point and the access point confirms that it has granted that request.
proxy server
RTS/CTS (Request to Send/Clear to Send)
802.11g
SIP (Session Initiation Protocol)
3. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.
Solaris
paging
Bluetooth Special Interest Group (SIG)
DiffServ (Differentiated Service)
4. A service in which television signals from broadcast or cable networks travel over packet-switched networks.
IPTV (IP television)
SIP (Session Initiation Protocol)
802.16
fading
5. The process a wireless station undergoes to find an access point.
RSVP (Resource Reservation Protocol)
scanning
class
proprietary UNIX
6. 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.
RTS/CTS (Request to Send/Clear to Send)
H.323
command interpreter
SSID (service set identifier)
7. A client or server operating system originally developed by researchers at AT&T Bell Laboratories in 1969.
passive scanning
UNIX
beacon frame
namespace
8. The real-time reception and transmission of images and audio among two or more locations.
RTS/CTS (Request to Send/Clear to Send)
MMC (Microsoft Management Console)
videoconferencing
per seat
9. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.
probe
ATA (analog telephone adapter)
site survey
beacon frame
10. A private switch that accepts and interprets both analog and digital voice signals (although some IP-PBXs do not accept analog lines). It can connect with both traditional PSTN lines and data networks. |
IP-PBX
object
Solaris
pipeline
11. A representation of a thing or person associated with the network that belongs in the NOS directory.
user agent server
infrastructure WLAN
IPTV (IP television)
object
12. A portion of the kernel that you can load and unload to add or remove functionality on a running UNIX or Linux system.
kernel module
DSSS (direct-sequence spread spectrum)
streaming video
Bluetooth Special Interest Group (SIG)
13. A small (usually home) network composed of personal communications devices.
PAN (personal area network)
scattering
inode (information node)
System V
14. A protocol that enables one system to access files on another system.
file access protocol
fax gateway
Mac OS X Server
map
15. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.
omnidirectional antenna
pipeline
reassociation
map
16. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.
pipe
roaming
SPARC
NTFS (New Technology File System)
17. A service in which a video stored as an encoded file is delivered to a viewer upon his request.
asymmetric multiprocessing
middleware
video-on-demand
IP telephone
18. A UNIX service responsible for printing files placed in the printer queue by the lpr command.
H.323 zone
lpr
lpd (line printer daemon)
preemptive multitasking
19. The ability of a processor to perform multiple activities in a brief period of time (often seeming simultaneous to the user
SMB (Server Message Block)
802.16e
SSID (service set identifier)
multitasking
20. A Transport layer protocol used with voice and video transmission. It operates on top of UDP and provides information about packet sequence to help receiving nodes detect delay and packet loss. It also assigns packets a timestamp that corresponds to
RTP (Real-time Transport Protocol)
distribution
directory
pipe
21. The brand of computer central processing unit invented by Apple Computer - IBM - and Motorola - Inc. - and used in IBM servers.
root
MGC (media gateway controller)
narrowband
PowerPC
22. 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).
reassociation
proprietary UNIX
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
ad hoc
23. A part of the organizational structure of an operating system's directory that contains objects or other organizational units.
site survey
domain tree
mobile
branch
24. A type of satellite that orbits the Earth roughly 6000 to 12 -000 miles above its surface - positioned between the equator and the poles. These satellites can cover a larger area of the Earth's surface than LEO satellites while using less power and c
command interpreter
RTP (Real-time Transport Protocol)
preemptive multitasking
MEO (medium Earth orbiting)
25. 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.
multipath
DSSS (direct-sequence spread spectrum)
VoATM (voice over ATM)
set top box
26. 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.
802.16
signaling
802.11a
PBX (private branch exchange)
27. A streaming video - either on demand or live - that is delivered via the Web.
videoconferencing
Webcast
reflection
virtualization
28. A routine of sequential instructions that runs until it has achieved its goal.
process
redirect server
video phone
lpd (line printer daemon)
29. In LDAP naming conventions - the name of an object.
forest
partition
scanning
CN (common name)
30. A service that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.
leaf object
Webcast
GUID (globally unique identifier)
VoATM (voice over ATM)
31. The characteristic of wireless signals that follow a number of different paths to their destination (for example - because of reflection - diffraction - and scattering).
scattering
RTS/CTS (Request to Send/Clear to Send)
VoATM (voice over ATM)
multipath
32. The software that sits between the client and server in a 3-tier architecture.
middleware
beacon frame
registrar server
DC (domain component)
33. In Microsoft terminology - a group of interconnected computers that share each others' resources without relying on a central file server.
multitasking
passive scanning
H.323 gateway
workgroup
34. A group of users - servers - and other resources that share account and security policies through a Windows Server 2003 or Server 2008 NOS.
reflection
WLAN (wireless LAN)
domain
ext3
35. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.
802.11a
explicit one-way trust
pipe
System V
36. The type of multitasking in which tasks are actually performed one at a time - in very brief succession. One program uses the processor for a certain period of time - then is suspended to allow another program to use the processor.
wireless gateway
directory
preemptive multitasking
reassociation
37. A multiprocessing method that assigns each subtask to a specific processor.
H.323 zone
asymmetric multiprocessing
child domain
BSS (basic service set)
38. A version of Linux packaged and distributed by Red Hat.
SMB (Server Message Block)
Fedora
802.11a
object
39. In the context of Windows Server 2003 or Server 2008 - a collection of domain trees that use different namespaces. It allows for trust relationships to be established between trees.
fixed
active scanning
802.11n
forest
40. A telephone switch used to connect calls within a private organization.
unified messaging
dial return
video over IP
PBX (private branch exchange)
41. An attribute of an object that identifies the object separately from its related container(s) and domain.
IP-PBX
domain model
RDN (relative distinguished name)
802.11g
42. A popular remote file system created by Sun Microsystems - and available for UNIX and Linux operating systems.
virtualization
NFS (Network File System)
PAN (personal area network)
site survey
43. An end node on a network; used most often in the context of wireless networks. transponder
802.16e
CN (common name)
symmetric multiprocessing
station
44. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.
role
Mac OS X Server
domain model
LEO (low Earth orbiting)
45. A Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.
root domain
domain controller
man pages (manual pages)
UPN (user principal name)
46. The memory that is logically carved out of space on the hard drive and added to physical memory (RAM).
page file
class
virtual memory
attribute
47. In the context of wireless networking - the process in which a station listens to several channels within a frequency range for a beacon issued by an access point.
per seat
mobile
passive scanning
virtual memory
48. A wireless networking standard that uses FHSS (frequency hopping spread spectrum) signaling in the 2.4-GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. IT was designed for use primarily with small of
Active Directory
iwconfig
Bluetooth
System V
49. In the context of wireless networking - the communication that occurs between a station and an access point to enable the station to connect to the network via that access point.
SPARC
object
association
ATA (analog telephone adapter)
50. 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.
object
user agent client
fading
virtual memory