A PBX is connected to a service provider that makes use of three ISDN PRI (T1) links and no other facility. Non-Facility Associated Signaling (NFAS) is in use (only one signaling channel for all three PRI links) and the tariff offering provides for the maximum number of voice channels. What is the maximum number of voice calls that can be made simultaneously?
- 69
- 71
- 72
- 90
Above is a converged voice and data network. This network is designed to carry voice calls onnet as close a possible to the destination to reduce long distance charges. Why is it that a VoIP call can go off-net earlier than designed? (Choose two)- The local voice gateway detects lack of bandwidth.
- The destination routing is not configured on both local and remote gateways.
- The telephone user dials an access code.
- The local call manager server is too busy to process the call.
CertKing Technologies has a single location with headquarters in one office building and three warehouses. Their customer base consists of 400 independent parts resellers. The resellers connect through direct links to the CertKing network to access an ordering system. The servers and access routers connecting to the retail outlets are on a separate Ethernet VLAN in the headquarters campus. The resellers complain about poor response time when they connect to the ordering system. CertKing Technologies wants you to help them improve their network to increase the performance of their customers' connections to the ordering system. What are two additional details about CertKing 's existing network needed for this analysis? (Choose all that apply.)
- The Router ACLs that provide security to the servers.
- The bandwidth for the Internet connection.
- Type of the connections to the resellers.
- Utilization on the servers' VLAN.
Chetana Fresher Jobs was approached by the Minister of the Education Department, to start an experiment in one of the public school districts since the government passed a Bill that all schools are to comply with the Safe Schools Initiative. The situation at the schools in this district is as follows: The district has approximately 3000 students dispersed in the following manner: - one high school, one junior high school and three grade schools. All the phone calls to these schools are switched by a local telephone company's centrex switch after which it is routed to the appropriate school. The schools are all fitted with fractional T1 Frame Relay and Cisco routers for networking purposes. The users are on a switched 10/1/100 network utilizing Cisco switched and Category 5 cable. The high school has the Internet access through an Internet Service Provider which resides 35 miles away via a T1 Frame Relay. This internet connection is shared with the other schools in the district. Due to the Safe Schools Initiative, phones need to be put in each classroom. Though the costs are astronomical and there are no facilities, the schools would also want to install video in each school for video conferencing purposes and it will be a definite aid in distance learning for the high school. ISDN PRI LINKS will be used to connect the video partners. In addition to the above, there is also the student information; that is stored on the local servers and shared between the schools as learners graduate from elementary to junior high to high school as well as transfers in and out of the district; that has to be protected. Why would you, the network administrator at CertKing , suggest moving towards a converged network to this particular customer? (Choose all that apply.)
- Cost savings by using a single cabling system for voice, video and data.
- Reduction of long distance charges by making use of VoIP.
- Can increase the number of phones without having to upgrade outside facilities
- Eliminate reliance on local provider for any future phone calls
Chetana Fresher Jobs was approached by the Minister of the Education Department, to start an experiment in one of the public school districts since the government passed a Bill that all schools are to comply with the Safe Schools Initiative. The situation at the schools in this district is as follows: The district has approximately 3000 students dispersed in the following manner: - one high school, one junior high school and three grade schools. All the phone calls to these schools are switched by a local telephone company's centrex switch after which it is routed to the appropriate school. The schools are all fitted with fractional T1 Frame Relay and Cisco routers for networking purposes. The users are on a switched 10/1/100 network utilizing Cisco switched and Category 5 cable. The high school has the Internet access through an Internet Service Provider which resides 35 miles away via a T1 Frame Relay. This internet connection is shared with the other schools in the district. Due to the Safe Schools Initiative, phones need to be put in each classroom. Though the costs are astronomical and there are no facilities, the schools would also want to install video in each school for video conferencing purposes and it will be a definite aid in distance learning for the high school. ISDN PRI LINKS will be used to connect the video partners. In addition to the above, there is also the student information; that is stored on the local servers and shared between the schools as learners graduate from elementary to junior high to high school as well as transfers in and out of the district; that has to be protected. Why would you, the network administrator at CertKing , protect the learner records when in transit between schools and when being shared with other school districts over the Internet, for this particular customer?
- Employ dactyloscopy
- Authenticate users
- Encrypt the data
- All of the above.
CertKing has a campus network with five buildings. All the CertKing servers and the central core of the network are located in Building 1. A Catalyst 6500 multilayer switch connects to each of the other building through Gigabit Ethernet link over multimode fiber optic cable. Each building has a separate IP subnet with 300 to 500 devices in each. CertKing users report some serious network performance problems. Periodically, response time becomes very slow and then increases again. The problem has been sporadic and very difficult to troubleshoot. CertKing uses Microsoft 2000 and Sun Solaris servers and Windows 2000 workstations with default configurations. What change in network design would you recommend to improve performance?
- Install a dual Gigabit Ethernet uplinks to the buildings.
- Install a layer 3 switch on each subnet.
- Use Single mode fiber optic cable for the Gigabit Ethernet uplinks to the buildings.
- Implement multiple VLANs in each of the buildings
The Accounting department and sales staff of medium-size company CertKing .com are complaining about slow network response of the common network that uses RIPv1. Traffic analyst show excessive broadcast traffic. Which network design change will you suggest that will improve network response time?
- Addition of bridge between two department
- Segmentation of the network into separate VLAN
- Migrating to IPv6
- Migrating to EIGRP
You are a network consultant. You are contracted by CertKing to subnet their network. You want to document the existing CertKing network. Which two Cisco router services can assist in documenting the existing network? (Choose all that apply.)
- CDP
- MRTG
- NetMon
- NetFlow
To minimize expenses due to long distance charges, you designed a converged network to carry calls on-net as close as possible to the destination. Why can a VoIP call go off-net earlier that designed? (Choose two.)
- The local voice gateway sends busy-back signal.
- The Call Manager server is too busy to process the call in a usual manner.
- The telephone user dials an access code.
- Destination routing not properly setup on the local and remote gateways.
Which of the following will you cite as reasons why VoIP calls could go off-net earlier than designed when a converged network was configured to carry voice calls on-net as close as possible to the destination to minimize long distance charges? (Choose all that apply.)
1. destination routing not properly configured on both local gateways
2. local call manager server is too busy to process the call
3. local voice-gateway detects insufficient WAN bandwidth
4. the telephone user dials an access code
Which of the following will you cite as reasons why VoIP calls could go off-net earlier than designed when a converged network was configured to carry voice calls on-net as close as possible to the destination to minimize long distance charges? (Choose all that apply.)- destination routing not properly configured on both local gateways
- local call manager server is too busy to process the call
- local voice-gateway detects insufficient WAN bandwidth
- the telephone user dials an access code