6050511
Descripción
Test por Joshua Hendrickson, actualizado hace más de 1 año
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Creado por Joshua Hendrickson
hace alrededor de 10 años
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Pregunta 1
Pregunta
What is SIPconnect?
Respuesta
-
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
Pregunta 2
Pregunta
RC 4733 supersedes RFC 2833 for DTMF Transport method definition
Respuesta
- True
- False
Pregunta 3
Pregunta
What is the response code number that indicates a SIP device is RINGING?
Respuesta
-
180
-
200
-
100
-
320
-
200 OK
Pregunta 4
Pregunta
With Assured SIP the SIP UA must send all of its SIP messages to its proxy
Respuesta
- True
- False
Pregunta 5
Pregunta
Which port is the Secure port on a Server supporting HTTPS?
Respuesta
-
43
-
443
-
80
-
83
Pregunta 6
Pregunta
What is the format type of a certificate issued by a CA?
Respuesta
-
x.25
-
x.500
-
x.CA-5
-
x.509
Pregunta 7
Pregunta
What device would you need to implement to allow a non-SIP (or IP based) PBX to utilize SIP trunking services from an ITSP
Respuesta
-
Media Gateway
-
Media Switch
-
Media Router
-
Media NAT
Pregunta 8
Pregunta
P.Preferred allows a SIP UA to have the option to suggest which SIP URI should be used when populating the P.Asserted Field
Respuesta
- True
- False
Pregunta 9
Pregunta
Early Media is required in order prevent voice 'clipping'
Respuesta
- True
- False
Pregunta 10
Pregunta
Response code 486 indicates a sip device is busy
Respuesta
- True
- False
Pregunta 11
Pregunta
SIP Call forking in parallel will send SIP invites to all of your registered SIP devices at the same time when someone calls you
Respuesta
- True
- False
Pregunta 12
Pregunta
What kind of server is required to allow SIP calls to be connected to the PSTN?
Respuesta
-
Proxy
-
Router
-
Gateway
-
Registrar
-
DNS
-
Location
Pregunta 13
Pregunta
What is the SIP method used to end a session? For example: when a person ends a call after a conversation is over
Respuesta
-
BYE
-
PRACK
-
CANCEL
-
ACK
Pregunta 14
Pregunta
DSCP stands for "Differentiated SIP Code Point"
Respuesta
- True
- False
Pregunta 15
Pregunta
1XSIP Trunk equates to a 1XDSL line to the ITSP
Respuesta
- True
- False
Pregunta 16
Pregunta
What is the recommended session expires value in seconds from RFC 4028
Respuesta
-
3600
-
180
-
90
-
1800
Pregunta 17
Pregunta
TRIP stands for
Respuesta
-
Transmittance of IP
-
Telecom Routing Information Protocol
-
Telephone Reliability over IP
-
Telephone Routing over IP
Pregunta 18
Pregunta
Which IETF Group is responsible for work on Instant Messaging and Presence
Respuesta
-
SIPPING
-
BLISS
-
DRINKS
-
SIGTRAN
-
SIMPLE
Pregunta 19
Pregunta
What is SIP said to be modeled after?
Respuesta
-
VoiceXML
-
XMPP
-
HTML
-
HTTP
Pregunta 20
Pregunta
Which is the value that all branch IDs in the SIP header sent out from a SIP server to begin with?
Respuesta
-
127.0.0.1
-
z9hG4bk
-
bid3261
-
branch=on
Pregunta 21
Pregunta
A 503 response code indicates a bad gateway
Respuesta
- True
- False
Pregunta 22
Pregunta
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)
Respuesta
-
Local STUN service
-
Local NAT Service
-
Local TLS Service
-
Local Media Proxy Service
Pregunta 23
Pregunta
Whilst on a voice conversation the ________ method can assist in the setup of Video to complement the conversation
Respuesta
-
UPDATE
-
OPTIONS
-
SUBSCRIBE
-
INFO
Pregunta 24
Pregunta
DTMF tones may be lost/corrupted if using the inband method of delivery along with the G.729 codec
Respuesta
- True
- False
Pregunta 25
Pregunta
Which Fiber technology acronym equates to fiber all the way to your residence
Respuesta
-
FTTT
-
FTTH
-
FTTC
Pregunta 26
Pregunta
TLS is used to secure SIP signaling
Respuesta
- True
- False
Pregunta 27
Pregunta
RTP carries Video across TCP to guarantee delivery
Respuesta
-
True
-
False
Pregunta 28
Pregunta
Which of these will assist a location server build its database of in service SIP devices
Respuesta
-
REGISTRATIONS
-
SUBSCRIPTIONS
-
INVITES
-
LOCATE COMMANDS
-
NAPTR QUERIES
Pregunta 29
Pregunta
For a single voice connection RTP and RTCP share the same UDP port number
Respuesta
- True
- False
Pregunta 30
Pregunta
Which DTMF method when used to carry DTMF tones can Proxies actually see the detail of the SIP message
Respuesta
-
MESSAGE
-
In-Band
-
SIP INFO
-
RFC 2833
Pregunta 31
Pregunta
The default port for Secure SIP signaling using TLS is also 5060
Respuesta
- True
- False
Pregunta 32
Pregunta
3164.arpa is the only ENUM tree available
Respuesta
- True
- False
Pregunta 33
Pregunta
What SIP method is used to INITIATE a new Conference
Respuesta
-
SUBSCRIBE
-
INITIATE
-
INVITE
-
REFER
-
CONF
Pregunta 34
Pregunta
RFC 4474 relates to caller identity
Respuesta
- True
- False
Pregunta 35
Pregunta
An IP phone may use which DHCP Option in order to register with a SIP server
Respuesta
-
66
-
120
-
132
-
133
Pregunta 36
Pregunta
There is no central registry in a Multi lateral VoIP peering arrangement
Respuesta
- True
- False
Pregunta 37
Pregunta
Layer 2 Classification is something routers will use to prioritize VoIP packets across a WAN link
Respuesta
- True
- False
Pregunta 38
Pregunta
Which two of the following are protocol suites that allow IP and Presence applications to work
Respuesta
-
OCS
-
CPP
-
SIMPLE
-
XMPP
-
HTML
Pregunta 39
Pregunta
Which RFC relates to transporting DTMF tones using SIP
Respuesta
-
RFC 2833
-
RFC 3261
-
RFC 2545
-
RFC 2861
Pregunta 40
Pregunta
What is the format of the ENUM query sent to the DNS server for the Telephone Number +441216679182
Respuesta
-
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
Pregunta 41
Pregunta
Which transport protocol does not use acknowledgements
Respuesta
-
UDP
-
TCP
Pregunta 42
Pregunta
MARTINI is an IETF working group
Respuesta
- True
- False
Pregunta 43
Pregunta
What element should a SIP proxy inspect to determine whether there is a loop?
Respuesta
-
VIA
-
Call-ID
-
Record-Route
-
To
-
From
Pregunta 44
Pregunta
When using a SIPS address and subsequently requesting a secure session, which protocol combination would be used?
Respuesta
-
TLS/TCP/IP
-
TLS/UDP/IP
-
TLS/IP
Pregunta 45
Pregunta
The VIA element of a SIP message can be found in the SDP body
Respuesta
- True
- False
Pregunta 46
Pregunta
SIP Bridging refers to
Respuesta
-
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
Pregunta 47
Pregunta
Select the main characteristics of a SIP location server
Respuesta
-
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
Pregunta 48
Pregunta
What level registrar will a person contact to register their AOR details
Respuesta
-
Tier 1
-
Tier 0
-
Tier 2
-
The Root
Pregunta 49
Pregunta
Out of band RTP relates to RFC 2833
Respuesta
- True
- False
Pregunta 50
Pregunta
How many bits can be used with a Layer 3 DSCP
Respuesta
-
8
-
6
-
46
-
5
-
3
Pregunta 51
Pregunta
The P asserted identity field is held within the SDP body of an INVITE message
Respuesta
- True
- False
Pregunta 52
Pregunta
If you call a remote SIP device but no Audio is heard, what is the 'most likely' problem?
Respuesta
-
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
Pregunta 53
Pregunta
Which SIP method initiates the binding of a SIP UA's URI to an AOR?
Respuesta
-
REGISTER
-
NAPTR
-
BIND
-
SUBSCRIBE
-
NOTIFY
Pregunta 54
Pregunta
Which IM client uses XMPP
Respuesta
-
X-Lite
-
Google Talk
-
Skype
-
Sightspeed
Pregunta 55
Pregunta
DTMF signalling messages can be carried within a SIP INFO message
Respuesta
- True
- False
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