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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 service in which television signals from broadcast or cable networks travel over packet-switched networks.
SPARC
reflection
IPTV (IP television)
diffraction
2. A series of two or more commands in which the output of prior commands is sent to the input of subsequent commands.
AIX
802.16e
GUID (globally unique identifier)
pipeline
3. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.
VoIP (voice over IP)
spread spectrum
printer queue
reflection
4. 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
distribution
Fedora
mount
5. A LAN that uses wireless connections for some or all of its transmissions.
forest
WLAN (wireless LAN)
leaf object
3-tier architecture
6. A service in which a video stored as an encoded file is delivered to a viewer upon his request.
object
video-on-demand
process
GNU
7. The memory that is logically carved out of space on the hard drive and added to physical memory (RAM).
wireless spectrum
virtual memory
NTFS (New Technology File System)
wireless gateway
8. The ability of a processor to perform multiple activities in a brief period of time (often seeming simultaneous to the user
Mac OS X Server
multitasking
diffraction
roaming
9. 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).
MCU (multipoint control unit)
proprietary UNIX
inode (information node)
videoconferencing
10. A 128-bit number generated and assigned to an object upon its creation in Active Directory.
satellite return
inherited
802.16e
GUID (globally unique identifier)
11. A version of Linux packaged and distributed by Red Hat.
redirector
Fedora
scattering
reassociation
12. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
video-on-demand
paging
hot spot
multipath
13. 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.
attribute
workgroup
FHSS (frequency hopping spread spectrum)
association
14. A UNIX or Linux file system information storage area that holds all details about a file. This information includes the size - the access rights - the date and time of creation - and a pointer to the actual contents of the file.
DC (domain component)
passive scanning
inode (information node)
AIX
15. The diffusion of a wireless signal that results from hitting an object that has smaller dimensions compared to the signal's wavelength.
file access protocol
scattering
satellite return
account
16. A customizable - graphical network management interface introduced with Windows Server 2003 and incorporated in Window Server 2008's Server Manager.
MMC (Microsoft Management Console)
per seat
UNIX
attribute
17. The technique of splitting tasks among multiple processors to expedite the completion of any single instruction.
unified messaging
distribution
multiprocessing
GNU
18. A record of a user that contains all of her properties - including rights to resources - password - user name - and so on.
LDAP (Lightweight Directory Access Protocol)
RTP (Real-time Transport Protocol)
account
The Open Group
19. 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.
diffraction
softphone
IPTV (IP television)
RTS/CTS (Request to Send/Clear to Send)
20. In the DiffServ QoS technique - a forwarding specification that allows routers to assign data streams one of several prioritization levels.
IP-PBX
MGCP (Media Gateway Control Protocol)
account
AF (Assured Forwarding)
21. 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.
forest
wireless broadband
wireless router
map
22. A well-defined - self-contained subset of a process. U
SSID (service set identifier)
NTFS (New Technology File System)
diffraction
thread
23. A device used on wireless LANs that transmits and receives wireless signals to and from multiple nodes and retransmits them to the rest of the network segment. Those can connect a group of nodes with a network or two networks with each other. They ma
channel bonding
MEGACO
reassociation
access point
24. In the context of wireless networking - a frame issued by an access point to alert other nodes of its existence.
kernel
child domain
beacon frame
X Window system
25. In the context of IPTV - a device that decodes digital video signals and issues them to the television.
H.323 gateway
MCU (multipoint control unit)
MEGACO
set top box
26. 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.
MMC (Microsoft Management Console)
pipe
H.245
lpd (line printer daemon)
27. 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.
MEGACO
DSSS (direct-sequence spread spectrum)
root domain
wireless broadband
28. An object in an operating system's directory - such as a printer or user - that does not contain other objects.
H.323 zone
mobile
leaf object
downlink
29. A type of server on a Windows Server 2003 or Server 2008 network that does not hold directory information and - therefore - cannot authenticate users.
802.16e
hot spot
ESSID (extended service set identifier)
member server
30. The action of associating a disk - directory - or device with a drive letter.
Bluetooth
H.323 terminal
wireless spectrum
map
31. A streaming video - either on demand or live - that is delivered via the Web.
Administrator
Webcast
EF (Expedited Forwarding)
kernel module
32. In the context of wireless networking - an assessment of client requirements - facility characteristics - and coverage areas to determine an access point arrangement that will ensure reliable wireless connectivity within a given area.
SIP (Session Initiation Protocol)
site survey
streaming video
hierarchical file system
33. 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
The Open Group
Server Manager
3-tier architecture
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
34. The preferred Active Directory naming convention for objects when used in informal situations. This name looks like a familiar Internet address - including the positioning of the domain name after the @ sign.
MIMO (multiple input-multiple output)
kernel
omnidirectional antenna
UPN (user principal name)
35. A routine of sequential instructions that runs until it has achieved its goal.
process
per seat
mobile
downlink
36. A UNIX distribution that originated at the University of California at Berkeley.
ad hoc
BSD (Berkeley Software Distribution)
AF (Assured Forwarding)
NFS (Network File System)
37. 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.
ext3
ad hoc
virtual memory
SIP (Session Initiation Protocol)
38. 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.
video-on-demand
pipe
LEO (low Earth orbiting)
domain tree
39. An area of a computer's hard drive that is logically defined and acts as a separate disk drive.
page file
partition
preemptive multitasking
probe
40. 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.
SMB (Server Message Block)
redirect server
channel bonding
SPARC
41. The brand of computer central processing unit invented by and used in Sun Microsystems servers.
RTP (Real-time Transport Protocol)
SPARC
Webcast
replication
42. The provision of telephone service over a packet-switched network running the TCP/IP protocol suite.
omnidirectional antenna
mobile
VoIP (voice over IP)
channel bonding
43. 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
Internet telephony
per seat
LEO (low Earth orbiting)
satellite return
44. The computer instructions written in a programming language that is readable by humans.
command interpreter
multiprocessing
source code
satellite return
45. A method used by wireless stations to detect the presence of an access point. The station issues a probe to each channel in its frequency range and waits for the access point to respond.
active scanning
PAN (personal area network)
group
GEO (geosynchronous orbit or geostationary orbit)
46. 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).
RSVP (Resource Reservation Protocol)
RTS/CTS (Request to Send/Clear to Send)
softphone
narrowband
47. The online documentation for any variety of the UNIX operating system. This documentation describes the use of the commands and the programming interface.
root domain
man pages (manual pages)
Solaris
user agent server
48. A licensing mode that allows a fixed quantity of clients to use one software package simultaneously.
LEO (low Earth orbiting)
MEO (medium Earth orbiting)
LOS (line-of-sight)
per user
49. A client/server environment that uses middleware to translate requests between the client and server.
domain tree
3-tier architecture
RTCP (Real-time Transport Control Protocol)
MEGACO
50. The centralized management of multiple types of network-based communications - such as voice - video - fax - and messaging services.
physical memory
mobile
unified messaging
forest