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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 freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.
UPN (user principal name)
GNU
Linux
per seat
2. A wireless signaling technique in which a signal jumps between several different frequencies within a band in a synchronization pattern known to the channel's receiver and transmitter.
fixed
wireless broadband
FHSS (frequency hopping spread spectrum)
Server Manager
3. The description of object types - or classes - and their required and optional attributes that are stored in an NOS's directory.
WLAN (wireless LAN)
lpd (line printer daemon)
schema
file access protocol
4. 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.
redirector
System V
two-way transitive trust
EF (Expedited Forwarding)
5. A technique for ensuring QoS by prioritizing traffic.
DiffServ (Differentiated Service)
GUID (globally unique identifier)
FHSS (frequency hopping spread spectrum)
DN (distinguished name)
6. The signals made of electromagnetic energy that travel through the atmosphere.
ext3
domain controller
ATA (analog telephone adapter)
wireless
7. 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.
BSSID (basic service set identifier)
spread spectrum
video over IP
fading
8. A type of wireless LAN in which stations communicate directly with each other (rather than using an access point).
user agent client
ad hoc
class
man pages (manual pages)
9. A special identifier shared by BSSs that belong to the same ESS.
ESSID (extended service set identifier)
IP telephone
ad hoc
802.11n
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
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
Linux
domain controller
pipe
11. A logical representation of multiple - hierarchical levels in a directory.
tree
IP telephone
Samba
EF (Expedited Forwarding)
12. 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.
attribute
unified messaging
kernel
group
13. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.
beacon frame
uplink
role
set top box
14. 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.
middleware
EF (Expedited Forwarding)
lpr
wireless
15. 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).
Linux
site license
PBX (private branch exchange)
DN (distinguished name)
16. A group of access points and associated stations (or basic service sets) connected to the same LAN.
set top box
IP telephone
DC (domain component)
ESS (extended service set)
17. 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
registrar server
DC (domain component)
preemptive multitasking
video-on-demand
18. A type of permission - or right - that is passed down from one group (the parent) to a group within that group (the child).
mount
inherited
Solaris
reflection
19. In LDAP naming conventions - the name of an object.
X Window system
CN (common name)
RSVP (Resource Reservation Protocol)
attribute
20. A group of hierarchically arranged domains that share a common namespace in the Windows Server 2003 or Server 2008 Active Directory.
root
802.16
domain tree
H.323 terminal
21. The process of moving blocks of information - called pages - between RAM and into a page file on disk.
The Open Group
branch
AF (Assured Forwarding)
paging
22. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.
Solaris
station
explicit one-way trust
diffraction
23. In Microsoft terminology - the type of client/server network that relies on domains - rather than workgroups.
domain model
attribute
DiffServ (Differentiated Service)
FoIP (fax over IP)
24. A service that runs on a client workstation and determines whether the client's request should be handled by the client or the server.
redirector
site license
replication
video phone
25. In the context of wireless signal propagation - the phenomenon that occurs when an electromagnetic wave encounters an obstruction and splits into secondary waves. The secondary waves continue to propagate in the direction in which they were split. Th
ESS (extended service set)
preemptive multitasking
set top box
diffraction
26. A wireless signal or path that travels directly in a straight line from its transmitter to its intended receiver.
redirector
GUID (globally unique identifier)
RTP (Real-time Transport Protocol)
LOS (line-of-sight)
27. 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.
access point
RTS/CTS (Request to Send/Clear to Send)
scanning
multipath
28. The term used to describe software that is distributed with few restrictions and whose source code is freely available.
Server Manager
open source software
domain model
AF (Assured Forwarding)
29. 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.
BSS (basic service set)
SIP (Session Initiation Protocol)
middleware
page file
30. 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
Internet telephony
RTP (Real-time Transport Protocol)
MGCP (Media Gateway Control Protocol)
page file
31. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.
dial return
roaming
MEGACO
BSS (basic service set)
32. 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
3-tier architecture
video-on-demand
BSSID (basic service set identifier)
satellite return
33. A routine of sequential instructions that runs until it has achieved its goal.
LEO (low Earth orbiting)
lpd (line printer daemon)
process
H.245
34. 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
SIP (Session Initiation Protocol)
Mac OS X Server
omnidirectional antenna
H.323
35. A type of wireless system in which the receiver can be located anywhere within the transmitter's range. This allows the receiver to roam from one place to another while continuing to pick up its signal.
MGC (media gateway controller)
mobile
multiprocessing
redirector
36. A standard protocol for accessing network directories.
RTP (Real-time Transport Protocol)
LDAP (Lightweight Directory Access Protocol)
access point
man pages (manual pages)
37. The provision of telephone service over the Internet.
Internet telephony
uplink
UPN (user principal name)
SMB (Server Message Block)
38. As specified in RFC 2205 - a QoS technique that attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.
association
replication
RSVP (Resource Reservation Protocol)
Mac OS X Server
39. A customizable - graphical network management interface introduced with Windows Server 2003 and incorporated in Window Server 2008's Server Manager.
scattering
MMC (Microsoft Management Console)
virtualization
inherited
40. A gateway that can translate IP fax data into analog fax data and vice versa.
H.245
inherited
ESS (extended service set)
fax gateway
41. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.
probe
wireless
registrar server
NFS (Network File System)
42. 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.
distribution
infrastructure WLAN
NFS (Network File System)
hierarchical file system
43. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
reassociation
hot spot
registrar server
file globbing
44. The process of making a disk partition available.
mobile
mount
DC (domain component)
scanning
45. The name of the primary file system used in most Linux distributions.
mobile
workgroup
video-on-demand
ext3
46. A collection of H.323 terminals - gateways - and MCUs that are managed by a single H.323 gatekeeper.
pipe
RDN (relative distinguished name)
H.323 zone
FHSS (frequency hopping spread spectrum)
47. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.
MGC (media gateway controller)
object
video-on-demand
mobile
48. A GUI tool provided with Windows Server 2008 that enables network administrators to manage server roles - features - resources - and users from a single interface.
System V
Server Manager
H.323 gateway
wireless gateway
49. 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. |
Samba
Bluetooth Special Interest Group (SIG)
Linux
IP-PBX
50. A highly privileged user ID that has all rights to create - delete - modify - move - read - write - or execute files on a UNIX or Linux system.
PowerPC
root
MMC (Microsoft Management Console)
per user