Deck 9: Unified Communications and Network Performance Management

Question 1

Most UNIX and Linux desktop operating systemsprovide a GUI application for easily viewing and filtering the information in system logs.

Answer 1

True

Question 2

In a VoIP call,what method of transmission is used between two IP phones?

A)global multicast
B)multicast
C)unicast
D)broadcast

Answer 2

C

Question 3

When using SIP,what term is used to describe end-user devices,which may include workstations,tablet computers,smartphones,or IP phones?

A)user agent
B)user agent client
C)user agent proxy
D)user agent node

Answer 3

B

Question 4

CALEA requires telecommunications carriers and equipment manufacturers to provide for surveillance capabilities.

Question 5

Which element of H.323 is a device that provides translation between network devices running the H.323 signaling protocols and devices running other types of signaling protocols?

A)H.323 terminal
B)H.323 gateway
C)H.323 gatekeeper
D)MCU

Question 6

SNMP agents receive requests from an NMS on what port number?

A)161
B)162
C)163
D)160

Question 7

When a device handles electrical signals improperly,usually resulting from a bad NIC,it is referred to by what term below?

A)ghost
B)jabber
C)talker
D)blabber

Question 8

Which of the following is not a requirement in order to use a softphone?

A)An IP telephony client.
B)The ability to communicate with a digital telephone switch.
C)A microphone and speakers,or a headset.
D)A wireless carrier to handle the voice path.

Question 9

A server running the SIP protocol listens on what TCP/UDP port for unsecured communications?

A)6050
B)5060
C)5061
D)6051

Question 10

A computer that provides support for multiple H.323 terminals and manages communication between them is known as what term below?

A)H.323 gateway
B)H.323 gatekeeper
C)MCU
D)H.323 server

Question 11

TCP is preferred over UDP for real time services.

Question 12

What percentage of Internet traffic,as estimated by Cisco Systems,will be devoted to video traffic by 2018?

A)20%
B)65%
C)79%
D)93%

Question 13

On circuit switched portions of a PSTN,what set of standards established by the ITU is used to handle call signaling?

A)MCU
B)H.323
C)H.225
D)SS7

Question 14

What component of SIP is a server that responds to user agent clients' requests for session initiation and termination?

A)proxy server
B)registrar server
C)user agent server
D)redirect server

Question 15

The SNMP version 3 protocol introduces authentication,validation,and encryption for messages exchanged between devices and the network management console.

Question 16

What security standard below was created to protect credit card data and transactions,requiring network segmentation as part of security controls?

A)CALEA
B)HIPAA
C)PCI DSS
D)CAARA

Question 17

Packets that exceed the medium's maximum packet size are known by what term?

A)giants
B)runts
C)ghosts
D)jabbers

Question 18

Packets that are smaller than a medium's minimum packet size are known by what term below?

A)jabbers
B)giants
C)ghosts
D)runts

Question 19

Wireshark or any other monitoring software running on a single computer connected to a switch doesn't see all the traffic on a network,but only the traffic the switch sends to it,which includes broadcast traffic and traffic specifically addressed to the computer.

Question 20

In H.323,which protocol below handles call or videoconference signaling?

A)H.225
B)H.245
C)H.200
D)H.252

Question 21

SNMP messages can be secured with ________,in which case agents receive requests on port UDP 10161,and the NMS receives responses and traps on UDP 10162.

Question 22

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
The distribution of traffic over multiplecomponents or links to optimize performance and faulttolerance.

Question 23

__________________ is the detection and signaling of device,link,or component faults.

Question 24

What two terms below are used to describe a telephone switch that connects and manages calls within a private organization?

A)public branch exchange
B)private branch exchange
C)PBX
D)PBE

Question 25

A highly available server is available what percentage of the time?

A)90%
B)99%
C)99.9%
D)99.99%

Question 26

What protocol enables multiple types of Layer 3 protocols to travel over any one of several connection-oriented Layer 2 protocols?

A)DiffServ
B)MPLS
C)CoS
D)SIP

Question 27

When using DiffServ,what type of forwarding utilizes a minimum departure rate from a given node,which is then assigned to each data stream?

A)assured forwarding
B)prioritized forwarding
C)scaled forwarding
D)expedited forwarding

Question 28

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
One of two DiffServ forwardingspecifications.It assigns each data stream a minimumdeparture rate from a given node.This technique circumventsdelays that slow normal data from reaching its destinationon time and in sequence.

Question 29

One aspect of the __________________ regulation addresses the security and privacy of medical records,including those stored or transmitted electronically.

Question 30

What two log files are used by older versions of Unix and newer version of Linux to store log information?

A)/var/log/messages
B)/var/log/syslog
C)/var/log/log
D)/var/adm/messages

Question 31

________________ are frames that are not actually data frames,but aberrations caused by a device misinterpreting stray voltage on the wire.

Question 32

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
One of two DiffServ forwarding specifications.It allows routers to assign data streams one of several prioritization levels,but it provides no guarantee that,on a busy network,messages will arrive on time or in sequence.It is specified in the DiffServ field in an IPv4 packet.

Question 33

In order for gateways to exchange and translate signaling and control information with each other so that voice and video packets are properly routed through a network,what intermediate device is needed?

A)media gateway
B)media proxy server
C)media gateway controller
D)analog switch

Question 34

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
A type of link aggregation in which two ormore NICs work in tandem to handle traffic to and from asingle node.

Question 35

The Priority Code Point field in a frame consists of how many bits?

A)2 bits
B)3 bits
C)5 bits
D)8 bits

Question 36

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
The network oflines and carrier equipment that provides telephone service tomost homes and businesses.

Question 37

What two terms below describe the process of manipulating certain characteristics of packets,data streams,or connections to manage the type and amount of traffic traversing a network or interface at any moment?

A)bandwidth policing
B)throughput shaping
C)traffic shaping
D)packet shaping

Question 38

A dropped packet is often referred to as a _____________.

Question 39

What two terms below describe a network device with three ports,two of which send and receive all traffic,and the third port mirrors the traffic?

A)network hub
B)network tap
C)network splitter
D)packet sniffer

Question 40

What two terms below are used to describe an analog-to-digital voice conversion device that accepts and interprets both analog and digital voice signals?

A)IP PBX
B)digital PBX
C)ATA PBX
D)ePBX

Question 41

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
A set of standards established bythe ITU for handling call signaling on circuit-switched portionsof the PSTN (Public Switched Telephone Network).

Question 42

Provide detail on the three different versions of SNMP.

Question 43

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
A U.S.federal regulation that requires telecommunicationscarriers and equipment manufacturers to provide forsurveillance capabilities.It was passed by Congressin 1994 after pressure from the FBI,which worried thatnetworks relying solely on digital communications wouldcircumvent traditional wiretapping strategies.

Question 44

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
A software-based tool that monitors trafficon the network from a server or workstation attached to thenetwork.It can typically interpret up toLayer 3 of the OSI model.

Question 45

What is the Health Insurance Portability and Accountability Act (HIPAA)?

Question 46

Describe the Communications Assistance for Law Enforcement Act (CALEA).

Question 47

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
A streaming video,either on demand or live,that isdelivered via the Web.

Question 48

Matching
Match each correct item with the statement below.
a.AF (Assured Forwarding)
b.CALEA (Communications Assistance for Law Enforcement Act)
c.network monitor
d.EF (Expedited Forwarding)
e.load balancing
f.NIC teaming
g.PSTN (Public Switched Telephone Network)
h.SS7 (Signaling System 7)
i.time-shifted video
j.Webcast
A broadcast that is delayed by a fewminutes to allow for editing processes and licensing concerns.

Question 49

Describe the PCI DSS (Payment Card Industry Data Security Standard).

Question 50

What are the minimum functions supported by all network monitoring tools?