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WorksheetsSS7 course
Total questions: 37
Worksheet time: 37mins
How many abstraction layers does OSI model has ?
4
7
6
Can an OSI Model abstraction layer exist without the layer above it ?
YES
NO
What are the Main Functions of a protocol? (select all that are valid)
Encapsulation
Sequence Numbering
Error Logging
Connection Control
How else SS7 set of protocols is referred to ?
CAS (channel associated signaling)
CCS (common channel signalling)
Cell Signalling
How are the first 3 layers of SS7 stack called ?
MTP3
MTP
NSP
What OSI layers correspond to SS7 TCAP ?
Session & Presentation
Transport & Session
Session only
What parameters are specific to SCCP layer ? (select all that are valid)
Global Title
SI (Service Indicator)
SSN (Subsystem number)
PC (point code)
Which protocols are TCAP users ? (select all that are valid)
MAP
ISUP
CAMEL
INAP
What type of message enconding INAP protocol uses?
XML
ABNF
ASN.1
JSON
What protocol is used for IN Roaming Calls ?
INAP
CAMEL
MAP
How Roaming MSC/VLR knows that a roamer has IN service ?
O-CSI
MSISDN
International Portability Base
IMSI
How is the "prepaid service" server called in IN terms ? (select all that are valid)
SSP
SCP
gsmSSF
gsmSCF
What protocol is used to retrieve subscriber location at any time?
INAP
MAP
SMPP
What is SIGTRAN?
Set of protocols defined to transport SS7 messages over IP networks
The name of OSI model Layer2
A SS7 gateway
What is the name of Sigtran Layer2 ?
TCP
UDP
SCTP
How the feature of a Sigtran Association that exposes 2 IPs (primary + secondary) is called ?
Multi-Streaming
Multi-Homing
Multi-Tasking
Sigtran In-sequence delivery is ensured within ?
a single association
a single transport address
a single stream
How the SCTP layer protects against DoS attack ?
4 way handshake & Cookies
Message Framing t
3 way handshake
How is the corresponded layer of SS7 MTP3 in Sigtran is called?
SUA
M2UA
M3UA
How the M3UA mode used between two IP-based signaling endpoints for new applications is called ?
SG
ASP
IPSP
How the M3UA mode used between a SS7-based signaling endpoint and an IP-based signaling endpoint, allowing backhauling of existing applications over an IP backbone, is called?
IPSP
ASP
SGP
How is the protocol used to initiate sessions of "Voice over IP" called?
SIP
RTP
SDP
How is the protocol used for determine SIP media type is called ?
SDP
RTP
RTCP
How is the protocol used for SIP media streaming called?
RTCP
RTP
SDP
In SIP a "user agent" can serve as :
client (UAC)
Server(UAS)
both
RTP runs over :
UDP
TCP
RTCP
HPE TAS has SCIF API for call control. What high level language is using?
Python
Java
C++
What comprises the HPE TAS middleware?
OCCP
USP-M
VM
HA manager in USP-M runs as:
active/active
active/standby
active/hot_standby
When I want to modify SS7 Stack configuration online , what cmd option must use?
-load
-save
-view
If we use cmd "ss7Stop" to stop SS7 Stack and after 30secs it autorestarts, what is the cause?
/etc/init/ss7.conf lines are uncommented
"ss7Stop" cmd need option "-all"
need to run "ocftstop" cmd instead
OCMP IVR for deploying new applications uses : (select all that are valid)
VXML
CCXML
JAVA
What is the port used for OCMP Base GUI ?
4443
5000
5443
What is the port used for OCMP BRE GUI?
5000
4443
5443
What is IVR-SRF function for ?
prepaid precall announcements
Short code IVR service incoming calls
outgoing IVR calls
What could be used as the backend for SNF? (select all that are valid)
OCMP
TAS SIP
IMS
OC SNF is a :
OCMP frontend
HTTP load balancer
SIP load balancer
