6050511
Beschreibung
Quiz von Joshua Hendrickson, aktualisiert more than 1 year ago
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Erstellt von Joshua Hendrickson
vor etwa 10 Jahre
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Frage 1
Frage
What is SIPconnect?
Antworten
-
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
Frage 2
Frage
RC 4733 supersedes RFC 2833 for DTMF Transport method definition
Antworten
- True
- False
Frage 3
Frage
What is the response code number that indicates a SIP device is RINGING?
Antworten
-
180
-
200
-
100
-
320
-
200 OK
Frage 4
Frage
With Assured SIP the SIP UA must send all of its SIP messages to its proxy
Antworten
- True
- False
Frage 5
Frage
Which port is the Secure port on a Server supporting HTTPS?
Antworten
-
43
-
443
-
80
-
83
Frage 6
Frage
What is the format type of a certificate issued by a CA?
Antworten
-
x.25
-
x.500
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x.CA-5
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x.509
Frage 7
Frage
What device would you need to implement to allow a non-SIP (or IP based) PBX to utilize SIP trunking services from an ITSP
Antworten
-
Media Gateway
-
Media Switch
-
Media Router
-
Media NAT
Frage 8
Frage
P.Preferred allows a SIP UA to have the option to suggest which SIP URI should be used when populating the P.Asserted Field
Antworten
- True
- False
Frage 9
Frage
Early Media is required in order prevent voice 'clipping'
Antworten
- True
- False
Frage 10
Frage
Response code 486 indicates a sip device is busy
Antworten
- True
- False
Frage 11
Frage
SIP Call forking in parallel will send SIP invites to all of your registered SIP devices at the same time when someone calls you
Antworten
- True
- False
Frage 12
Frage
What kind of server is required to allow SIP calls to be connected to the PSTN?
Antworten
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Proxy
-
Router
-
Gateway
-
Registrar
-
DNS
-
Location
Frage 13
Frage
What is the SIP method used to end a session? For example: when a person ends a call after a conversation is over
Antworten
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BYE
-
PRACK
-
CANCEL
-
ACK
Frage 14
Frage
DSCP stands for "Differentiated SIP Code Point"
Antworten
- True
- False
Frage 15
Frage
1XSIP Trunk equates to a 1XDSL line to the ITSP
Antworten
- True
- False
Frage 16
Frage
What is the recommended session expires value in seconds from RFC 4028
Antworten
-
3600
-
180
-
90
-
1800
Frage 17
Frage
TRIP stands for
Antworten
-
Transmittance of IP
-
Telecom Routing Information Protocol
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Telephone Reliability over IP
-
Telephone Routing over IP
Frage 18
Frage
Which IETF Group is responsible for work on Instant Messaging and Presence
Antworten
-
SIPPING
-
BLISS
-
DRINKS
-
SIGTRAN
-
SIMPLE
Frage 19
Frage
What is SIP said to be modeled after?
Antworten
-
VoiceXML
-
XMPP
-
HTML
-
HTTP
Frage 20
Frage
Which is the value that all branch IDs in the SIP header sent out from a SIP server to begin with?
Antworten
-
127.0.0.1
-
z9hG4bk
-
bid3261
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branch=on
Frage 21
Frage
A 503 response code indicates a bad gateway
Antworten
- True
- False
Frage 22
Frage
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)
Antworten
-
Local STUN service
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Local NAT Service
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Local TLS Service
-
Local Media Proxy Service
Frage 23
Frage
Whilst on a voice conversation the ________ method can assist in the setup of Video to complement the conversation
Antworten
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UPDATE
-
OPTIONS
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SUBSCRIBE
-
INFO
Frage 24
Frage
DTMF tones may be lost/corrupted if using the inband method of delivery along with the G.729 codec
Antworten
- True
- False
Frage 25
Frage
Which Fiber technology acronym equates to fiber all the way to your residence
Antworten
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FTTT
-
FTTH
-
FTTC
Frage 26
Frage
TLS is used to secure SIP signaling
Antworten
- True
- False
Frage 27
Frage
RTP carries Video across TCP to guarantee delivery
Antworten
-
True
-
False
Frage 28
Frage
Which of these will assist a location server build its database of in service SIP devices
Antworten
-
REGISTRATIONS
-
SUBSCRIPTIONS
-
INVITES
-
LOCATE COMMANDS
-
NAPTR QUERIES
Frage 29
Frage
For a single voice connection RTP and RTCP share the same UDP port number
Antworten
- True
- False
Frage 30
Frage
Which DTMF method when used to carry DTMF tones can Proxies actually see the detail of the SIP message
Antworten
-
MESSAGE
-
In-Band
-
SIP INFO
-
RFC 2833
Frage 31
Frage
The default port for Secure SIP signaling using TLS is also 5060
Antworten
- True
- False
Frage 32
Frage
3164.arpa is the only ENUM tree available
Antworten
- True
- False
Frage 33
Frage
What SIP method is used to INITIATE a new Conference
Antworten
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SUBSCRIBE
-
INITIATE
-
INVITE
-
REFER
-
CONF
Frage 34
Frage
RFC 4474 relates to caller identity
Antworten
- True
- False
Frage 35
Frage
An IP phone may use which DHCP Option in order to register with a SIP server
Antworten
-
66
-
120
-
132
-
133
Frage 36
Frage
There is no central registry in a Multi lateral VoIP peering arrangement
Antworten
- True
- False
Frage 37
Frage
Layer 2 Classification is something routers will use to prioritize VoIP packets across a WAN link
Antworten
- True
- False
Frage 38
Frage
Which two of the following are protocol suites that allow IP and Presence applications to work
Antworten
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OCS
-
CPP
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SIMPLE
-
XMPP
-
HTML
Frage 39
Frage
Which RFC relates to transporting DTMF tones using SIP
Antworten
-
RFC 2833
-
RFC 3261
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RFC 2545
-
RFC 2861
Frage 40
Frage
What is the format of the ENUM query sent to the DNS server for the Telephone Number +441216679182
Antworten
-
441216679182.e164.arpa
-
281976612144.e164.arpa
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4.4.1.2.1.6.6.7.9.1.8.2.e164.arpa
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2.8.1.9.7.6.6.1.2.1.4.4.e164.arpa
Frage 41
Frage
Which transport protocol does not use acknowledgements
Antworten
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UDP
-
TCP
Frage 42
Frage
MARTINI is an IETF working group
Antworten
- True
- False
Frage 43
Frage
What element should a SIP proxy inspect to determine whether there is a loop?
Antworten
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VIA
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Call-ID
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Record-Route
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To
-
From
Frage 44
Frage
When using a SIPS address and subsequently requesting a secure session, which protocol combination would be used?
Antworten
-
TLS/TCP/IP
-
TLS/UDP/IP
-
TLS/IP
Frage 45
Frage
The VIA element of a SIP message can be found in the SDP body
Antworten
- True
- False
Frage 46
Frage
SIP Bridging refers to
Antworten
-
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
Frage 47
Frage
Select the main characteristics of a SIP location server
Antworten
-
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
Frage 48
Frage
What level registrar will a person contact to register their AOR details
Antworten
-
Tier 1
-
Tier 0
-
Tier 2
-
The Root
Frage 49
Frage
Out of band RTP relates to RFC 2833
Antworten
- True
- False
Frage 50
Frage
How many bits can be used with a Layer 3 DSCP
Antworten
-
8
-
6
-
46
-
5
-
3
Frage 51
Frage
The P asserted identity field is held within the SDP body of an INVITE message
Antworten
- True
- False
Frage 52
Frage
If you call a remote SIP device but no Audio is heard, what is the 'most likely' problem?
Antworten
-
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
Frage 53
Frage
Which SIP method initiates the binding of a SIP UA's URI to an AOR?
Antworten
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REGISTER
-
NAPTR
-
BIND
-
SUBSCRIBE
-
NOTIFY
Frage 54
Frage
Which IM client uses XMPP
Antworten
-
X-Lite
-
Google Talk
-
Skype
-
Sightspeed
Frage 55
Frage
DTMF signalling messages can be carried within a SIP INFO message
Antworten
- True
- False
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