Term
| The function of a _____________ is to receive the signal, amplify it and retransmit it enabling the signal to be transmitted over a longer distance. |
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Definition
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Term
| ______________ regenerate and re-time the signal, helping it travel a longer distance. |
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Definition
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Term
| A ___________ is a multiple port repeater |
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Definition
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Term
| What OSI layer does a hub operate on? |
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Definition
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Term
| A __________ regenerates and cleans up a signal, and then transmits the signal on all other ports. |
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Definition
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Term
| What are the two types of hubs? |
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Definition
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Term
| What is the difference between active and passive hubs? |
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Definition
| Active hubs regenerate the signal, passive hubs do not |
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Term
| What is the advantage of hubs over switches or other devices used to interconnect devices? |
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Definition
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Term
| What is the main disadvantage of hubs over switches or other devices used to interconnect devices? |
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Definition
| It causes traffic congestion and collisions |
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Term
| ____________ provide connectivity between an end-user compute to the public network. |
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Definition
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Term
| What are the three LED lights typically found on a Network Interface? |
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Definition
| Link Light, Activity Light, Speed Light |
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Term
| ______________ were used as a solution for issues relating to network congestion by segmenting the network. |
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Definition
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Term
| _____________ are very smart Bridges with the characteristics of being multi port and high speed. |
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Definition
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Term
| What is the fundamental difference between a bridge and a switch? |
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Definition
| Bridges process frames in software whereas switches process frames in hardware. |
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Term
| This switch function increases the speed of the network; it allows monitoring of multiple conversations. |
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Definition
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Term
| This switch function allows storage of frames and later forwarding the frame to the right port. |
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Definition
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Term
| What speeds can switches support? |
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Definition
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Term
| _________ is a term that is used to measure the time it takes an incoming frame to come back out of a switch. In the case of switches, it is low. |
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Definition
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Term
| This switch feature allows segmentation of networks into separate broadcast domains. |
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Definition
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Term
| ___________ means that dedicated switch ports are created for every end station; meaning that dedicated paths for sending and receiving transmission with every connected hosts are created. |
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Definition
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Term
| __________ contains the start up microcode. This code is basic for booting of a device. It also maintains POST (Power on Self Test), bootstrap, and RXBOOT |
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Definition
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Term
| ____________ stores the machine‘s running IOS and running configuration. |
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Definition
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Term
| __________ is the memory that contains the CISCO IOS software image. It is used by the router automatically to locate the IOS when it is booted. |
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Definition
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Term
| What does NVRAM? stand for? |
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Definition
| Non Volatile Random Access Memory |
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Term
| __________ memory stores the startup configuration. |
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Definition
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Term
| The boot up method is controlled by the ______________. |
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Definition
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Term
| The physical connection to the external devices is termed as _____________. |
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Definition
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Term
| Which OSI layers are considered "Upper Layers"? |
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Definition
| Application, Presentation, and Session |
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Term
| Which OSI layers are considered "Lower Layers"? |
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Definition
| Transport, Network, Data Link, and Physical |
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Term
| This layer serves as an interface between an external application and a host‘s communication. |
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Definition
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Term
| This is the layer that can change the data and acts as a data format translator. Translation converts the data to a readable form. |
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Definition
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Term
| This layer controls the dialog between devices. |
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Definition
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Term
| What do the Upper Layers of the OSI model do? |
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Definition
| Define communications between applications residing on the end user. |
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Term
| What do the Lower Layers of the OSI model deal with? |
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Definition
| The transportation of data? |
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Term
| This layer is responsible for data delivery between two hosts and making end-to-end connections. One of the main functions of this layer is segmentation and reassembling of data. |
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Definition
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Term
| What three functions does the Session Layer (4) perform? |
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Definition
*Detection of faults;
*Error Correction
*Maintaining and Establishing virtual circuits. |
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Term
| This Session Layer function ensures prevention of flooding of the packets at the destination hosts. |
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Definition
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Term
| This Session Layer function allows for the sender to receive a(n) ____________. In case it does not receive a(n) ___________ it will retransmit. |
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Definition
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Term
| What Session Layer function is described by the following: On reaching the destination Data segments are arranged in their original order. |
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Definition
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Term
| This layer provides logical addressing. Determination of the best path for determining the logical address is done in this layer. |
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Definition
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Term
| On which OSI Layer do routers operate? |
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Definition
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Term
| What are the three steps followed by a router for data transportation? |
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Definition
1. Checking of the destination IP address of the incoming packet on the router;
2. Processing of packets determined for this particular router and looking in the routing table for the rest of the packets;
3. Determining of an exit interface and sending the packet on the interface |
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Term
| What three pieces of information is contained in the routing table for each entry? |
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Definition
1. Network Address
2. Exit Interface for forwarding packets
3. Metric that is the distance to reach a remote network |
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Term
| What are the two types of packets used by the Network Layer? |
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Definition
| Data Packets and Route Update Packets |
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Term
| _______ packets transport data across the inter network. These are supported by IP and IPX protocols. |
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Definition
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Term
| ___________ packets send updates to neighboring routers connected to a inter network. They are supported by RIP,EIGRP, and OSPF routing protocols. |
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Definition
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Term
| This layer transfer data from the Network layer to the Physical layer. From thereon the data is transmitted across the network. |
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Definition
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Term
| What are the two domains that determine data transport reliability? |
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Definition
| Broadcast Domain and Collision Domain |
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Term
| These are a group of nodes segmented by routers. These can receive broadcast messages of each other. |
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Definition
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Term
| These are a group of nodes segmented by switches and which also share the same media. |
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Definition
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Term
| devices are notified of a collision by following the __________________ an access method. |
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Definition
| Carrier Sense Multiple Access Collision Detection (CSMA/CD) |
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Term
| What are the two sub layers of the Data Link Layer? |
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Definition
| Media Access Control and Logical Link Control Layer |
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Term
| This layer moves bits between nodes. |
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Definition
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Term
| What OSI Layer(s) Correspond to the Application TCP/IP Layer? |
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Definition
| Application, Presentation, Session |
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Term
| What OSI Layer(s) Correspond to the Host to Host Transport TCP/IP Layer? |
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Definition
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Term
| What OSI Layer(s) Correspond to the Internet TCP/IP Layer? |
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Definition
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Term
| What OSI Layer(s) Correspond to the Network Interface TCP/IP Layer? |
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Definition
| Data Link Layer and Physical Layer |
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Term
| These applications are initiated by humans and complete on their own without further interaction. Examples of this application are: FTP and TFTP. |
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Definition
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Term
| In this type of applications are included Voice over IP (VoIP) and video. In these applications Network bandwidth is crucial as these applications are essentially time critical. Quality of service (QoS) and sufficient network bandwidth are mandatory for these applications |
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Definition
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Term
| In this type of applications are included database updates and queries. Data is requested from a server and the reply is awaited. |
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Definition
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Term
| What are the two types of Network Administration Applications? |
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Definition
| Network Monitoring and Network Management |
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Term
| This Network feature is also called the data rate. It refers to how fast data is transmitted over the network. |
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Definition
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Term
| This Network feature term refers to how secure the network and network data are. |
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Definition
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Term
| This network feature term refers to the measurement of the likelihood that the network will be available for use when required. |
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Definition
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Term
| This network feature term refers to the dependability of the devices that make up the network |
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Definition
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Term
| This network feature term refers to how well the network can accommodate more users and more data. |
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Definition
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Term
| This network feature term refers to the design of the network. |
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Definition
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Term
| _________ topology comprises of cables, workstations and peripheral devices which are combined to form the network. |
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Definition
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Term
| This term refers to how basically a system communicates. It refers to how signals travel from one point to the other. |
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Definition
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Term
| In this the network nodes are connected through a single cable. This single cable is known as a trunk or a backbone. |
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Definition
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Term
| The disadvantage of this topology is it is an outdated topology and break down of the cable results in break down of the complete network. |
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Definition
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Term
| In this form of topology, one device is connected to two other devices on the same network. It goes from one end station to the next till it reaches back to the original device. |
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Definition
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Term
| What is a dual ring topology? |
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Definition
| Each ring sends data in a different direction and in case of a breakdown in one ring, the system still operates. |
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Term
| It is one of the most common networks designs followed. A central device is separately connected to each end note. There is a separate cable for each connection in creasing the costing of implementing this design. |
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Definition
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Term
| Using of hubs in this topology creates a logical bus and is called a Hub and Spoke Topology. |
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Definition
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Term
| In this topology connections can easily be added or removed without affecting service to the other nodes on the network. |
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Definition
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Term
| In ______ Topology each device is connected to every device on the network. |
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Definition
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Term
| What are the two types of mesh topology? |
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Definition
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Term
| In this the device is directly connected to some devices but not the entire network |
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Definition
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Term
| In this the devices are connected to all the other devices on the network. |
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Definition
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Term
| If the destination for the packet is on an external network, what is needed to deliver the packet? |
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Definition
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Term
| What does GBIC stand for? |
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Definition
| Gigabit Interface Converters |
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Term
| _____________ is an Integrated Services Digital Network (ISDN) service that consists of two 64Kbps bearer (B) channels and one 16Kbps data (D) channel. |
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Definition
| Basic Rate Interface (BRI) |
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Term
| Uplink and downlink bit stream are synchronized by ______________________. This interface adjusts date rate to make certain that the sending and receiving bit stream are at same speed. |
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Definition
| synchronous serial interface |
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Term
| This is essentially reverse of the synchronous serial interface. The clocks for the sending and receiving bit stream are not synchronized by ______________________. |
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Definition
| asynchronous serial interface |
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Term
| ________________ can transmit data up to 52Mbps transmission rates to the WAN. Corporate that requires high speed internet access and VPN connectivity like telephone companies can use High speed serial interface. 2-port HSSI is put on block by Cisco. |
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Definition
| High-speed serial interfaces (HSSI) |
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Term
| _____ is a linking line that offers data transmission speed of 1.544Mbps. 24 digital signal level 0 (DS0) channels are comprised in single _________ line that is 64Kbps each. |
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Definition
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Term
| The piece of equipment which is used to connect service provider‘s communication lines and Date Terminal Equipment is referred to as _____________ |
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Definition
| Data Communications Equipment (DCE) or Data Circuit-Terminating Equipment (DCE) |
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Term
| What are the three things that may serve as DCE? |
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Definition
| Modem, Channel Service Unit/Data Service Unit (CSU/DSU), Basic Rate Interface Network Termination Type 1 (BRI NT-1) |
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Term
| _____________ is a apparatus that encode/ decode a digital signal into an analog signal or an analog signal to digital signal for further transmission/ reception on a telephone line. |
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Definition
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Term
| The pace for the clock speed in most of the cases is set by the _______. It is also the link between the service provider and the WAN router. |
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Definition
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Term
| The device at the user end connected to the service provider via a DCE (Data Communications Equipment) is referred to as _______________. |
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Definition
| Data Terminal Equipment (DTE) |
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Term
| What are the three things that may serve as a DTE? |
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Definition
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Term
| Check if the Cables are properly connected to the computers, switches and routers and the respective interfaces on the devices are UP. If not then fix the cables. |
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Definition
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