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Test your basic knowledge |
Comptia Network + Wireless NOS Voip
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Subjects
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certifications
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comptia-network-+
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it-skills
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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 method of satellite Internet access in which a subscriber receives data via a satellite downlink transmission - but sends data to the satellite via an analog modem (dialup) connection.
GUID (globally unique identifier)
dial return
wireless
H.245
2. 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.
satellite return
802.16
forest
wireless
3. 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).
wireless gateway
RTP (Real-time Transport Protocol)
schema
DN (distinguished name)
4. 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. |
NTFS (New Technology File System)
schema
IP-PBX
PowerPC
5. A small (usually home) network composed of personal communications devices.
account
H.323 zone
PAN (personal area network)
Active Directory
6. 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.
directory
member server
two-way transitive trust
PowerPC
7. The provision of telephone service over a packet-switched network running the TCP/IP protocol suite.
lpr
SIP (Session Initiation Protocol)
PBX (private branch exchange)
VoIP (voice over IP)
8. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.
Bluetooth
probe
wireless router
video-on-demand
9. A continuum of electromagnetic waves used for data and voice
PAN (personal area network)
wireless spectrum
proprietary UNIX
DSSS (direct-sequence spread spectrum)
10. 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
group
role
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
fixed
11. The characteristic of wireless signals that follow a number of different paths to their destination (for example - because of reflection - diffraction - and scattering).
multipath
LOS (line-of-sight)
H.323 zone
Server Manager
12. A type of WLAN in which stations communicate with an access point and not directly with each other.
Internet telephony
H.225
infrastructure WLAN
multitasking
13. A service that runs on a client workstation and determines whether the client's request should be handled by the client or the server.
partition
H.323 gateway
videoconferencing
redirector
14. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.
inherited
radiation pattern
MGC (media gateway controller)
multitasking
15. The real-time reception and transmission of images and audio among two or more locations.
The Open Group
Server Manager
videoconferencing
ext3
16. A service that relies on a DSL connection to transmit packetized voice signals.
asymmetric multiprocessing
VoDSL (voice over DSL)
infrastructure WLAN
probe
17. A client/server environment that uses middleware to translate requests between the client and server.
3-tier architecture
CN (common name)
Administrator
branch
18. In the context of applications - a licensing mode that limits access to an application to specific users or workstations.
per seat
X Window system
fax gateway
802.16
19. A type of wireless system in which the locations of the transmitter and receiver are static.
fixed
forest
VoIP (voice over IP)
RDN (relative distinguished name)
20. 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).
dial return
proprietary UNIX
active scanning
OU (organizational unit)
21. The process a wireless station undergoes to find an access point.
user agent server
kernel module
multiprocessing
scanning
22. A unique character string used to identify an access point on an 802.11 network.
NFS (Network File System)
SSID (service set identifier)
open source software
association
23. A type of object recognized by an NOS directory and defined in an NOS schema.
class
fixed
station
file access protocol
24. A proprietary implementation of the UNIX operating system by Sun Microsystems.
radiation pattern
Solaris
open source software
802.16e
25. A group of hierarchically arranged domains that share a common namespace in the Windows Server 2003 or Server 2008 Active Directory.
directory
802.11a
domain tree
ad hoc
26. A variable property associated with a network object. For example - a restriction on the time of day a user can log on is an attribute associated with that user object.
attribute
distribution
range
lpd (line printer daemon)
27. In LDAP naming conventions - the name of any one of the domains to which an object belongs.
branch
inherited
DC (domain component)
VoATM (voice over ATM)
28. A type of server on a Windows Server 2003 or Server 2008 network that does not hold directory information and - therefore - cannot authenticate users.
user agent server
fixed
explicit one-way trust
member server
29. A connection from an Earth-based transmitter to an orbiting satellite.
uplink
scattering
user agent client
H.225
30. 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).
downlink
active scanning
fixed
H.323 gateway
31. A connection from an orbiting satellite to an Earth-based receiver.
MGCP (Media Gateway Control Protocol)
downlink
redirect server
Internet telephony
32. 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.
signaling
hierarchical file system
AF (Assured Forwarding)
diffraction
33. 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.
per seat
association
command interpreter
802.16e
34. An object in an operating system's directory - such as a printer or user - that does not contain other objects.
leaf object
IP-PBX
beacon frame
toll bypass
35. An access point that provides routing functions.
802.11g
wireless router
FoIP (fax over IP)
registrar server
36. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.
H.245
account
printer queue
reassociation
37. 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.
process
MEGACO
wireless router
access point
38. The ability of a processor to perform multiple activities in a brief period of time (often seeming simultaneous to the user
directional antenna
multitasking
LOS (line-of-sight)
namespace
39. A series of two or more commands in which the output of prior commands is sent to the input of subsequent commands.
scanning
iwconfig
pipeline
Fedora
40. A Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.
AIX
domain controller
System V
satellite return
41. 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.
H.245
MGCP (Media Gateway Control Protocol)
root
DN (distinguished name)
42. The IEEE standard for a wireless networking technique that uses DSSS (directsequence spread spectrum) signaling in the 2.4-2.4835-GHz frequency range (also called the 2.4-GHz band). It separates the 2.4-GHz band into 14 overlapping 22-MHz channels an
DC (domain component)
802.11b
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
RDN (relative distinguished name)
43. A service that transmits faxes over a TCP/IP network.
ATA (analog telephone adapter)
System V
FoIP (fax over IP)
Bluetooth Special Interest Group (SIG)
44. The proprietary version of UNIX that comes from Bell Labs.
System V
fading
explicit one-way trust
tree
45. In general - a listing that organizes resources and correlates them with their properties. In the context of NOSs - a method for organizing and managing objects.
directory
fading
downlink
registrar server
46. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.
H.323 zone
UNIX
EF (Expedited Forwarding)
role
47. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
hot spot
RTCP (Real-time Transport Control Protocol)
virtual memory
H.245
48. 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
Bluetooth
802.11g
pipe
RTP (Real-time Transport Protocol)
49. The name of the primary file system used in most Linux distributions.
uplink
ext3
association
MEO (medium Earth orbiting)
50. A technique for ensuring QoS by prioritizing traffic.
CN (common name)
IP-PBX
class
DiffServ (Differentiated Service)
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