TT0-201 Exam Questions
96 real TT0-201 exam questions with expert-verified answers and explanations. Page 2 of 2.
- Question #152
Realtime Transport Protocol (RTP) can run on top of various protocols. Which is the most commonly implemented with RTP?
- Question #153
In Europe, the Middle East, and Africa, which of the following provides 30 64-Kbps channels for data or voice, and two channels for signaling information?
- Question #154
Consider the following information: - You are outsourcing your e-mail server. - A spam filter has been implemented. - You are running an internal DNS server. - A Session Border Con...
- Question #155
You want to tunnel QSIG traffic across a data network connection. Which convergence protocol could you use?
- Question #156
Which of the following is required to allow multiple gateways to create a videoconference?
- Question #157
You have been informed that an SIP-enabled PBX named gatekeeper.ctpcertified.com allows you to access a configuration screen at port 8080 using any standard Web browser. The port r...
- Question #158
Which of the following statements is true of using VLANs to subnet a network?
- Question #159
Which of the following is a drawback of using a private IP address?
- Question #160
How does the 3-bit User Priority field found in an 802.1q frame help voice quality in LAN-based communications?
- Question #161
Which convergence protocol is ASCII-based, and will become the de facto standard for voice and video?
- Question #162
Which codec provides high voice quality, is considered current, and uses only 8 Kbps of bandwidth?
- Question #163
Which of the following is based on Extensible Authentication Protocol (EAP), usually uses a RADIUS server, and can be used to authenticate wireless voice and video users, but does...
- Question #164
Your organization owns a block of public IP addresses, 152.2.0.0/16. The network administrators have created multiple subnets by using a /25 subnet mask. How many subnets were crea...
- Question #165
You are extending your wired network by adding several wireless access points. You do not foresee a need to support wireless voice devices, but you are required to have wireless da...
- Question #166
Which low-overhead transport-layer protocol is generally used to establish calls in SIP implementations and to carry voice packets during an established session?
- Question #167
You are configuring an SIP device. Which of the following is a valid SIP URI to enter if you need to specify a non-standard port?
- Question #168
The Session Initiation Protocol (SIP) uses the ASCII text standard to format its messages. The
- Question #169
What happens to a protocol data unit as information passes from OSI/RM Layer 1 to Layer 7?
- Question #170
In an H.323 implementation, which of the following protocols is responsible for establishing, controlling and ending calls?
- Question #171
What is the purpose of a jitter buffer?
- Question #172
Which device often functions in a manner that introduces significant problems for SIP-based voice connections, and often requires a workaround?
- Question #173
An SIP phone that you recently installed is experiencing voice quality issues. Which action should you consider to improve voice quality?
- Question #174
Which of the following correctly describes the address spaces of IPv4 and IPv6?
- Question #175
Which industry standard for measuring voice is now preferred because it is non-subjective and is based on actual network performance measurements?
- Question #176
Which feature is commonly provided in an IP-based PBX, but not in a traditional PBX?
- Question #177
Which of the following is one of the three layers specified in the IP Multimedia Subsystem (IMS)?
- Question #178
Which of the following attacks exploits switches that use the default VLAN and autotrunking?
- Question #179
Your customer has asked you to enable fax messages to be delivered to her computer so she can read them in her e-mail client. Which protocol should you implement on your convergenc...
- Question #180
You are implementing a VoIP solution for a company that has an existing switching and VLAN implementation and a routed WAN. After carrying out a network health check, you have isol...
- Question #181
According to the International Telecommunications Union (ITU), how much delay can a one-way connection encounter, yet still provide toll-quality voice in which users do not notice...
- Question #182
Which protocols are implemented in an H.323 gatekeeper to help traverse firewalls when Network Address Translation (NAT) is being used?
- Question #183
What is the size of the VLAN ID field?
- Question #184
Which of the following best describes the mechanisms used in traffic shaping?
- Question #185
Which of the following best describes an E1 line used for voice data?
- Question #186
Which of the following is a drawback of the original Wireless Multimedia Extensions (WME) standard?
- Question #187
Which of the following symptoms might occur on a large network that carries both voice and traditional data if VLAN tagging has not been properly implemented?
- Question #188
You have installed a wireless access point. Which protocol is most likely to ensure that wireless voice and video clients will enjoy high-quality voice connections through this dev...
- Question #189
Which of the following will most likely trigger priority handling by network devices implementing the 802.1q and 802.1p protocols in a LAN?
- Question #190
Which of the following would NOT be a result of implementing 802.1q and placing IP phones in their own VLAN?
- Question #191
You are using symmetric Network Address Translation (NAT) in your network. You need a workaround for your Session Initiation Protocol (SIP) devices. You are using SIP phones from m...
- Question #192
An IP phone has had difficulty obtaining an IP address. You are using a packet sniffer to determine whether this device is able to request an IP address from a DHCP server. As you...
- Question #193
An SIP proxy server has the following IP configuration: 172.80.54.23/20 Which is the correct address for the network containing this server?
- Question #194
Which DNS record must be updated when implementing an SIP VoIP solution in which Dynamic Delegation Discovery System (DDDS) is being used?
- Question #195
Alice is on Network A. Using the Windows tracert utility, she discovers a network path through Router 1 to her colleague Bob on Network B. She can use tracert to see the path to Bo...
- Question #226
Consider the following output of the tracert command: of 30 hops: 1 2 ms 1 ms 2 ms 192.168.1.1 2 13 ms 9 ms 12 ms 10.160.64.1 3 10 ms 11 ms 11 ms 68.2.9.21 4 9 ms 10 ms 8 ms 68.2.1...
- Question #260
What impact does the 3-bit User Priority field in an 802.1q frame have to help voice quality in LAN-based communications?