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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.
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 that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.
NFS (Network File System)
VoATM (voice over ATM)
explicit one-way trust
unified messaging
2. In IEEE terminology - the identifier for a BSS (basic service set).
PowerPC
BSSID (basic service set identifier)
explicit one-way trust
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
3. The action of associating a disk - directory - or device with a drive letter.
PAN (personal area network)
map
domain controller
fax gateway
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. |
site survey
IP-PBX
RTCP (Real-time Transport Control Protocol)
wireless
5. 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
H.323 gateway
domain model
AF (Assured Forwarding)
6. 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.
Server Manager
active scanning
MMC (Microsoft Management Console)
X Window system
7. A type of phone that includes a screen and can decode compressed video and interpret transport and signaling protocols necessary for conducting videoconference sessions.
video phone
channel bonding
domain
redirect server
8. The term used to describe the recently released standards for highthroughput - long-distance digital data exchange over wireless connections.
RTP (Real-time Transport Protocol)
wireless broadband
beacon frame
video over IP
9. 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.
root
station
H.323 zone
replication
10. A technique for ensuring QoS by prioritizing traffic.
open source software
FoIP (fax over IP)
directory
DiffServ (Differentiated Service)
11. In the context of IPTV - a device that decodes digital video signals and issues them to the television.
toll bypass
NFS (Network File System)
namespace
set top box
12. A representation of a thing or person associated with the network that belongs in the NOS directory.
object
LEO (low Earth orbiting)
AF (Assured Forwarding)
fixed
13. 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).
Bluetooth Special Interest Group (SIG)
fixed
H.323 gatekeeper
DN (distinguished name)
14. A service in which television signals from broadcast or cable networks travel over packet-switched networks.
H.225
IPTV (IP television)
RTCP (Real-time Transport Control Protocol)
SSID (service set identifier)
15. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.
probe
site survey
middleware
802.16
16. The online documentation for any variety of the UNIX operating system. This documentation describes the use of the commands and the programming interface.
man pages (manual pages)
replication
Server Manager
IP-PBX
17. 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.
DSSS (direct-sequence spread spectrum)
VoATM (voice over ATM)
iwconfig
wireless broadband
18. An access point that provides routing functions and is used as a gateway.
wireless gateway
shell
physical memory
domain model
19. A connection from an orbiting satellite to an Earth-based receiver.
active scanning
downlink
VoDSL (voice over DSL)
domain
20. A UNIX service responsible for printing files placed in the printer queue by the lpr command.
lpd (line printer daemon)
tree
PBX (private branch exchange)
virtual memory
21. A computer that provides support for multiple H.323 terminals (for example - several workstations participating in a videoconference) and manages communication between them.
FHSS (frequency hopping spread spectrum)
MCU (multipoint control unit)
802.11g
redirector
22. A unique character string used to identify an access point on an 802.11 network.
FoIP (fax over IP)
BSS (basic service set)
SSID (service set identifier)
LOS (line-of-sight)
23. In LDAP naming conventions - the name of an object.
CN (common name)
inode (information node)
IP-PBX
streaming video
24. A protocol that enables one system to access files on another system.
narrowband
channel bonding
IP-PBX
file access protocol
25. In SIP terminology - a server that responds to user agent clients' requests for session initiation and termination.
user agent server
PowerPC
uplink
CN (common name)
26. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
domain model
streaming video
hot spot
WLAN (wireless LAN)
27. An operating system's method of organizing - managing - and accessing its files through logical structures and software routines.
spread spectrum
file system
explicit one-way trust
root domain
28. A service that relies on a DSL connection to transmit packetized voice signals.
SIP (Session Initiation Protocol)
association
VoDSL (voice over DSL)
physical memory
29. The RAM chips installed on the computer's system board that provide dedicated memory to that computer.
physical memory
registrar server
page file
802.11g
30. A Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.
802.11g
AF (Assured Forwarding)
domain controller
SPARC
31. A nonprofit industry association that owns the UNIX trademark.
The Open Group
DC (domain component)
H.245
forest
32. 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
LDAP (Lightweight Directory Access Protocol)
Administrator
printer queue
33. 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
EF (Expedited Forwarding)
per user
lpd (line printer daemon)
RTP (Real-time Transport Protocol)
34. A group of access points and associated stations (or basic service sets) connected to the same LAN.
printer queue
ESS (extended service set)
fading
CIFS (Common Internet File System)
35. A continuum of electromagnetic waves used for data and voice
wireless spectrum
multitasking
symmetric multiprocessing
H.323 gateway
36. An ITU standard that describes an architecture and a suite of protocols for establishing and managing multimedia services sessions on a packet-switched network.
virtual memory
H.323
unified messaging
Samba
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.
H.323 zone
PBX (private branch exchange)
MEGACO
lpd (line printer daemon)
38. 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.
association
dial return
hierarchical file system
preemptive multitasking
39. 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.
omnidirectional antenna
MIMO (multiple input-multiple output)
object
Administrator
40. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.
ext3
user agent server
explicit one-way trust
namespace
41. A freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.
UPN (user principal name)
group
lpr
Linux
42. The name given to the public software project to implement a complete - free source code implementation of UNIX. It also refers to the collection of UNIX-inspired utilities and tools that are included with Linux distributions.|
802.11b
GNU
LDAP (Lightweight Directory Access Protocol)
proxy server
43. The term used to refer to the different implementations of a particular UNIX or Linux system. For example - different distributions of Linux include Fedora - SUSE - and Ubuntu.
forest
streaming video
distribution
active scanning
44. 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).
reassociation
beacon frame
softphone
shell
45. The centralized management of multiple types of network-based communications - such as voice - video - fax - and messaging services.
unified messaging
Active Directory
X Window system
802.11b
46. 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.
802.11a
uplink
FHSS (frequency hopping spread spectrum)
domain model
47. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.
SMB (Server Message Block)
MGC (media gateway controller)
active scanning
hot spot
48. The software that sits between the client and server in a 3-tier architecture.
middleware
physical memory
inode (information node)
member server
49. A GUI tool provided with Windows Server 2008 that enables network administrators to manage server roles - features - resources - and users from a single interface.
satellite return
Server Manager
NFS (Network File System)
BSD (Berkeley Software Distribution)
50. An access point that provides routing functions.
SSID (service set identifier)
scattering
wireless router
GUID (globally unique identifier)
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