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SSCA SIP Training Practice Test 1

Description

Basic SIP Quiz on SSCA SIP Training Practice Test 1, created by Joshua Hendrickson on 16/08/2016.
Joshua Hendrickson
Quiz by Joshua Hendrickson, updated more than 1 year ago
Joshua Hendrickson
Created by Joshua Hendrickson almost 9 years ago
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Resource summary

Question 1

Question
What is SIPconnect?
Answer
  • A Recommendation for PBX and ITSP interoperability
  • The State of the SIP Trunk after the first Registration message has been accepted
  • An RFC for connectivity of SIP Trunks
  • The name of the SIP Trunk to the ITSP

Question 2

Question
RC 4733 supersedes RFC 2833 for DTMF Transport method definition
Answer
  • True
  • False

Question 3

Question
What is the response code number that indicates a SIP device is RINGING?
Answer
  • 180
  • 200
  • 100
  • 320
  • 200 OK

Question 4

Question
With Assured SIP the SIP UA must send all of its SIP messages to its proxy
Answer
  • True
  • False

Question 5

Question
Which port is the Secure port on a Server supporting HTTPS?
Answer
  • 43
  • 443
  • 80
  • 83

Question 6

Question
What is the format type of a certificate issued by a CA?
Answer
  • x.25
  • x.500
  • x.CA-5
  • x.509

Question 7

Question
What device would you need to implement to allow a non-SIP (or IP based) PBX to utilize SIP trunking services from an ITSP
Answer
  • Media Gateway
  • Media Switch
  • Media Router
  • Media NAT

Question 8

Question
P.Preferred allows a SIP UA to have the option to suggest which SIP URI should be used when populating the P.Asserted Field
Answer
  • True
  • False

Question 9

Question
Early Media is required in order prevent voice 'clipping'
Answer
  • True
  • False

Question 10

Question
Response code 486 indicates a sip device is busy
Answer
  • True
  • False

Question 11

Question
SIP Call forking in parallel will send SIP invites to all of your registered SIP devices at the same time when someone calls you
Answer
  • True
  • False

Question 12

Question
What kind of server is required to allow SIP calls to be connected to the PSTN?
Answer
  • Proxy
  • Router
  • Gateway
  • Registrar
  • DNS
  • Location

Question 13

Question
What is the SIP method used to end a session? For example: when a person ends a call after a conversation is over
Answer
  • BYE
  • PRACK
  • CANCEL
  • ACK

Question 14

Question
DSCP stands for "Differentiated SIP Code Point"
Answer
  • True
  • False

Question 15

Question
1XSIP Trunk equates to a 1XDSL line to the ITSP
Answer
  • True
  • False

Question 16

Question
What is the recommended session expires value in seconds from RFC 4028
Answer
  • 3600
  • 180
  • 90
  • 1800

Question 17

Question
TRIP stands for
Answer
  • Transmittance of IP
  • Telecom Routing Information Protocol
  • Telephone Reliability over IP
  • Telephone Routing over IP

Question 18

Question
Which IETF Group is responsible for work on Instant Messaging and Presence
Answer
  • SIPPING
  • BLISS
  • DRINKS
  • SIGTRAN
  • SIMPLE

Question 19

Question
What is SIP said to be modeled after?
Answer
  • VoiceXML
  • XMPP
  • HTML
  • HTTP

Question 20

Question
Which is the value that all branch IDs in the SIP header sent out from a SIP server to begin with?
Answer
  • 127.0.0.1
  • z9hG4bk
  • bid3261
  • branch=on

Question 21

Question
A 503 response code indicates a bad gateway
Answer
  • True
  • False

Question 22

Question
What service does an ICE capable SIP UAC start in order to assist called SIP devices get signaling and media back to it? (I swear guys this is how the question is worded on the drill sheet, jkh)
Answer
  • Local STUN service
  • Local NAT Service
  • Local TLS Service
  • Local Media Proxy Service

Question 23

Question
Whilst on a voice conversation the ________ method can assist in the setup of Video to complement the conversation
Answer
  • UPDATE
  • OPTIONS
  • SUBSCRIBE
  • INFO

Question 24

Question
DTMF tones may be lost/corrupted if using the inband method of delivery along with the G.729 codec
Answer
  • True
  • False

Question 25

Question
Which Fiber technology acronym equates to fiber all the way to your residence
Answer
  • FTTT
  • FTTH
  • FTTC

Question 26

Question
TLS is used to secure SIP signaling
Answer
  • True
  • False

Question 27

Question
RTP carries Video across TCP to guarantee delivery
Answer
  • True
  • False

Question 28

Question
Which of these will assist a location server build its database of in service SIP devices
Answer
  • REGISTRATIONS
  • SUBSCRIPTIONS
  • INVITES
  • LOCATE COMMANDS
  • NAPTR QUERIES

Question 29

Question
For a single voice connection RTP and RTCP share the same UDP port number
Answer
  • True
  • False

Question 30

Question
Which DTMF method when used to carry DTMF tones can Proxies actually see the detail of the SIP message
Answer
  • MESSAGE
  • In-Band
  • SIP INFO
  • RFC 2833

Question 31

Question
The default port for Secure SIP signaling using TLS is also 5060
Answer
  • True
  • False

Question 32

Question
3164.arpa is the only ENUM tree available
Answer
  • True
  • False

Question 33

Question
What SIP method is used to INITIATE a new Conference
Answer
  • SUBSCRIBE
  • INITIATE
  • INVITE
  • REFER
  • CONF

Question 34

Question
RFC 4474 relates to caller identity
Answer
  • True
  • False

Question 35

Question
An IP phone may use which DHCP Option in order to register with a SIP server
Answer
  • 66
  • 120
  • 132
  • 133

Question 36

Question
There is no central registry in a Multi lateral VoIP peering arrangement
Answer
  • True
  • False

Question 37

Question
Layer 2 Classification is something routers will use to prioritize VoIP packets across a WAN link
Answer
  • True
  • False

Question 38

Question
Which two of the following are protocol suites that allow IP and Presence applications to work
Answer
  • OCS
  • CPP
  • SIMPLE
  • XMPP
  • HTML

Question 39

Question
Which RFC relates to transporting DTMF tones using SIP
Answer
  • RFC 2833
  • RFC 3261
  • RFC 2545
  • RFC 2861

Question 40

Question
What is the format of the ENUM query sent to the DNS server for the Telephone Number +441216679182
Answer
  • 441216679182.e164.arpa
  • 281976612144.e164.arpa
  • 4.4.1.2.1.6.6.7.9.1.8.2.e164.arpa
  • 2.8.1.9.7.6.6.1.2.1.4.4.e164.arpa

Question 41

Question
Which transport protocol does not use acknowledgements
Answer
  • UDP
  • TCP

Question 42

Question
MARTINI is an IETF working group
Answer
  • True
  • False

Question 43

Question
What element should a SIP proxy inspect to determine whether there is a loop?
Answer
  • VIA
  • Call-ID
  • Record-Route
  • To
  • From

Question 44

Question
When using a SIPS address and subsequently requesting a secure session, which protocol combination would be used?
Answer
  • TLS/TCP/IP
  • TLS/UDP/IP
  • TLS/IP

Question 45

Question
The VIA element of a SIP message can be found in the SDP body
Answer
  • True
  • False

Question 46

Question
SIP Bridging refers to
Answer
  • A call from the PSTN to a SIP Device
  • A Call from a SIP device to the PSTN
  • The Connection of a call from a H.323 Network to a SIP based network
  • A Call between PSTN devices where the call "crosses" a SIP based network

Question 47

Question
Select the main characteristics of a SIP location server
Answer
  • Its database is built by receiving updates from the REGISTRAR server
  • It requires active directory to work
  • It can utilize external databases such as DNS to help find other SIP devices and users
  • The LOCATION service usually co-exists on the same server as the REGISTRAR service

Question 48

Question
What level registrar will a person contact to register their AOR details
Answer
  • Tier 1
  • Tier 0
  • Tier 2
  • The Root

Question 49

Question
Out of band RTP relates to RFC 2833
Answer
  • True
  • False

Question 50

Question
How many bits can be used with a Layer 3 DSCP
Answer
  • 8
  • 6
  • 46
  • 5
  • 3

Question 51

Question
The P asserted identity field is held within the SDP body of an INVITE message
Answer
  • True
  • False

Question 52

Question
If you call a remote SIP device but no Audio is heard, what is the 'most likely' problem?
Answer
  • The Firewall is blocking RTP traffic
  • The Codecs are mis-matched
  • You are connecting to the wrong SIP proxy
  • The Firewall is blocking SIP Signaling

Question 53

Question
Which SIP method initiates the binding of a SIP UA's URI to an AOR?
Answer
  • REGISTER
  • NAPTR
  • BIND
  • SUBSCRIBE
  • NOTIFY

Question 54

Question
Which IM client uses XMPP
Answer
  • X-Lite
  • Google Talk
  • Skype
  • Sightspeed

Question 55

Question
DTMF signalling messages can be carried within a SIP INFO message
Answer
  • True
  • False
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