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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 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.
kernel
unified messaging
Mac OS X Server
middleware
2. An object in an operating system's directory - such as a printer or user - that does not contain other objects.
leaf object
middleware
domain model
video over IP
3. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.
reflection
SSID (service set identifier)
AIX
BSSID (basic service set identifier)
4. A 128-bit number generated and assigned to an object upon its creation in Active Directory.
set top box
GUID (globally unique identifier)
attribute
PBX (private branch exchange)
5. 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
The Open Group
wireless router
distribution
802.11n
6. A type of object recognized by an NOS directory and defined in an NOS schema.
DC (domain component)
MEGACO
directional antenna
class
7. An operating system's method of organizing - managing - and accessing its files through logical structures and software routines.
fading
virtual memory
UPN (user principal name)
file system
8. An area of a computer's hard drive that is logically defined and acts as a separate disk drive.
softphone
two-way transitive trust
AIX
partition
9. 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
downlink
omnidirectional antenna
UNIX
fading
10. Any type of video service - including IPTV - videoconferencing - and streaming video - that delivers video signals over packet-switched networks using the TCP/IP protocol suite.
video over IP
AF (Assured Forwarding)
802.11g
RDN (relative distinguished name)
11. In IEEE terminology - the identifier for a BSS (basic service set).
LDAP (Lightweight Directory Access Protocol)
workgroup
BSS (basic service set)
BSSID (basic service set identifier)
12. 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.
dial return
pipe
reassociation
tree
13. A streaming video - either on demand or live - that is delivered via the Web.
workgroup
Webcast
lpd (line printer daemon)
association
14. A well-defined - self-contained subset of a process. U
thread
Bluetooth Special Interest Group (SIG)
RTCP (Real-time Transport Control Protocol)
multipath
15. The relative strength over a three-dimensional area of all the electromagnetic energy an antenna sends or receives.
SPARC
RTP (Real-time Transport Protocol)
DN (distinguished name)
radiation pattern
16. A continuum of electromagnetic waves used for data and voice
wireless spectrum
SMB (Server Message Block)
station
active scanning
17. A logical receptacle for holding objects with similar characteristics or privileges in an NOS directory. Containers form the branches of the directory tree.
MGC (media gateway controller)
narrowband
OU (organizational unit)
explicit one-way trust
18. An access point that provides routing functions and is used as a gateway.
probe
wireless gateway
scattering
domain tree
19. On a network following the H.323 standard - any node that provides audio - visual - or data information to another node.
H.323 terminal
omnidirectional antenna
RDN (relative distinguished name)
inode (information node)
20. The centralized management of multiple types of network-based communications - such as voice - video - fax - and messaging services.
unified messaging
per seat
IPTV (IP television)
station
21. In the DiffServ QoS technique - a forwarding specification that assigns each data stream a minimum departure rate from a given node. This technique circumvents delays that slow normal data from reaching its destination on time and in sequence.
domain controller
EF (Expedited Forwarding)
account
softphone
22. A Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.
class
streaming video
wireless gateway
domain controller
23. 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).
kernel module
RDN (relative distinguished name)
schema
H.323 gateway
24. Another term for the UNIX command interpreter.
domain tree
802.11b
shell
association
25. 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
namespace
ATA (analog telephone adapter)
802.11b
mount
26. 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.
passive scanning
source code
GEO (geosynchronous orbit or geostationary orbit)
RTS/CTS (Request to Send/Clear to Send)
27. 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
DSSS (direct-sequence spread spectrum)
beacon frame
registrar server
MMC (Microsoft Management Console)
28. 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.
passive scanning
member server
H.323 gatekeeper
object
29. In IEEE terminology - a group of stations that share an access point.
SSID (service set identifier)
BSS (basic service set)
source code
domain
30. A series of two or more commands in which the output of prior commands is sent to the input of subsequent commands.
domain controller
branch
pipeline
MEO (medium Earth orbiting)
31. A logical representation of multiple - hierarchical levels in a directory.
attribute
wireless router
tree
MGCP (Media Gateway Control Protocol)
32. 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.
account
BSD (Berkeley Software Distribution)
GUI (graphical user interface)
asymmetric multiprocessing
33. A connection from an orbiting satellite to an Earth-based receiver.
CIFS (Common Internet File System)
downlink
partition
redirector
34. A collection of H.323 terminals - gateways - and MCUs that are managed by a single H.323 gatekeeper.
group
scattering
H.323 zone
MEGACO
35. The provision of telephone service over a packet-switched network running the TCP/IP protocol suite.
RTCP (Real-time Transport Control Protocol)
proxy server
VoIP (voice over IP)
3-tier architecture
36. A GUI tool provided with Windows Server 2008 that enables network administrators to manage server roles - features - resources - and users from a single interface.
LDAP (Lightweight Directory Access Protocol)
RTCP (Real-time Transport Control Protocol)
Server Manager
inherited
37. A service in which a video stored as an encoded file is delivered to a viewer upon his request.
lpr
video-on-demand
SSID (service set identifier)
attribute
38. A connection from an Earth-based transmitter to an orbiting satellite.
wireless
middleware
uplink
UPN (user principal name)
39. 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
Bluetooth
inherited
forest
tree
40. A type of permission - or right - that is passed down from one group (the parent) to a group within that group (the child).
multitasking
Bluetooth
inherited
range
41. An ITU standard that describes an architecture and a suite of protocols for establishing and managing multimedia services sessions on a packet-switched network.
domain tree
satellite return
X Window system
H.323
42. The term used to describe the recently released standards for highthroughput - long-distance digital data exchange over wireless connections.
GEO (geosynchronous orbit or geostationary orbit)
namespace
wireless broadband
SIP (Session Initiation Protocol)
43. In the context of 802.11n wireless networking - the ability for access points to issue multiple signals to stations - thereby multiplying the signal's strength and increasing their range and data-carrying capacity.
two-way transitive trust
MIMO (multiple input-multiple output)
member server
namespace
44. A telephone switch used to connect calls within a private organization.
PBX (private branch exchange)
SMB (Server Message Block)
SIP (Session Initiation Protocol)
attribute
45. 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.
MEGACO
WLAN (wireless LAN)
RTS/CTS (Request to Send/Clear to Send)
LDAP (Lightweight Directory Access Protocol)
46. A UNIX distribution that originated at the University of California at Berkeley.
domain
H.323 gatekeeper
infrastructure WLAN
BSD (Berkeley Software Distribution)
47. The software that sits between the client and server in a 3-tier architecture.
middleware
passive scanning
ESSID (extended service set identifier)
RDN (relative distinguished name)
48. A service that relies on a DSL connection to transmit packetized voice signals.
802.11b
IP-PBX
two-way transitive trust
VoDSL (voice over DSL)
49. In Microsoft terminology - a group of interconnected computers that share each others' resources without relying on a central file server.
kernel
workgroup
thread
802.11g
50. The diffusion of a wireless signal that results from hitting an object that has smaller dimensions compared to the signal's wavelength.
forest
scattering
Administrator
MEO (medium Earth orbiting)