CH 2 Network Concepts Quizes

You have several hosts, a switch and a router as shown in the exhibit. Workstation1 sends an IP packet containing a photograph to Workstation3. Which destination MAC address does Workstation1 use?

000b5f2a2222

You have several hosts, a switch and a router as shown in the exhibit. Workstation1 sends an IP packet containing a text document to Workstation2. Which destination address does Workstation1 put in the Ethernet frame header of the packet containing the text document.

080046987654

Workstation3 has started communication with Workstation2. It sends a frame to default gateway. Identify the Layer 2 and Layer 3 addresses used by the Cisco 2600 router to forward the data to Workstation2 by dragging the corresponding address from the list on the left to its location on the right. 1. Layer 2 source address 2. Layer 3 source address 3. Layer 2 destination address 4. Layer 4 destination address

1. 000b5f2a2222 2. 192.168.11.11 3. 080046987654 4. 192.168.10.12

Workstation2 needs to send data to Workstation3. Identify the Layer 2 and Layer 3 address used by Workstation2 to send the data by dragging the corresponding addressing from the list on the left to its location on the right. 1. Layer 2 source address 2. Layer 3 source address 3. Layer 2 destination address 4. Layer 4 destination address

1. 080046987654 2. 192.168.10.12 3. 000b5f2a2222 4.192.168.11.11

The following items describe the functions performed at various OSI model layers: 1. Logical topology, hardware addresses, media access, framing 2. Logical device identification, path identification and selection 3. Flow control, reliable data transfer, windowing, segmentation, and sequencing 4. Convert data to 0s and 1s, bit signaling and synchronization

1. Data link 2. Network 3. Transport 4. Physical

Match the firewall types on the left with the characteristics shown on the right. 1. Usually a software firewall 2. Most robust and secure firewall 3. Considered a hardware firewall 4. Installed on a single computer 5. Installed on the edge of a network 6. Less robust and less customizable

1. Host-base firewall 2. Network-based firewall 3. Network-based firewall 4. Host-based firewall 5. Network-based firewall 6. Host-based firewall

Drag each layer of the TCP/IP model on the left to the networking component associated with it on the right. Each layer of the TCP/IP model may be used once, more than once, or not at all 1. Host IP addresses 2. Sequencing information 3. MAC addresses 4. Acknowledgments 5. Network addresses

1. Internet Layer 2. Transport layer 3. Link layer 4. Transport layer 5. Internet layer

Drag the information type on the left to the appropriate layer of the OSI model that is associated with on the right 1. Network Layer 2. Data Link Layer 3. Physical Layer 4. Transport Layer 5. Application Layer

1. Packets 2. Frames 3. Bits 4. Segments 5. Data

Match the TCP/IP protocols with their function by dragging the protocol name on the left dropping it next to the description on the right. 1. Used to get the IP address of a host from a known MAC address 2. Used to transfer files 3. Used to identify routes through an internetwork

1. RARP and BOOTP 2. FTP and TFTP 3. RIP and OSPF

Match the TCP/IP protocols with their function by dragging the protocol name on the left dropping it next to the description on the right 1. Used to send email messages between mail servers 2. Used to send messages to groups of users 3. Used to assign IP addresses to hosts 4. Used to get the MAC address of a host from its IP address

1. SMTP 2. IGMP 3. (leave blank) Believe to be DHCP 4. ARP

Drag the information type on the left to the appropriate layer of the TCP/IP model that is associated with on the right. 1. Transport Layer 2. Link Layer 3. Application Layer 4. Internet Layer

1. Segments 2. Frames 3. Data 4. Packets

You need to connect several network devices together using twisted pair Ethernet cables. Assuming Auto-MDI-MDIX is not enabled on these devices 1. Workstation to switch 2. Router to switch 3. Switch to switch 4. Workstation to router 5. Router to router

1. Straight-through Ethernet Cable 2. Straight-through Ethernet Cable 3. Crossover Ethernet Cable 4. Crossover Ethernet Cable 5. Crossover Ethernet Cable

Match each characteristic on the left with the appropriate fiber optic connector on the right 1. MT-RJ 2. LC 3. ST 4. SC

1. Uses metal guide pins to ensure proper alignment 2. Is half the size of other fiber optic connectors 3. Uses a bayonet-type connector 4. Uses a separate push-on, pull-off connector with a locking tab

An Ethernet network meets the specification for Ethernet 1000BaseT. a single server is connected to a port on the switch. The switch port is configured for auto-detect. What is the available bandwidth on the server cable segment?

1000 Mbps if the server NIC is half duplex; 2000 Mbps if the server NIC is set to full duplex

You have several hosts, a switch, and router as shown in the exhibit. Workstation2 sends an IP packet to Workstation3. Which default gateway address is used by Workstation2?

192.168.10.1

Which of the following is true of CSMA/CD?

A device with data to send first listens to the transmission medium to determine if it is free. If collisions are detected, an interrupt jam signal is broadcast to stop all transmissions

Which of the following are characteristics of a switch?

A switch reads the MAC address in a frame and makes forwarding decisions based on that address. The collision domain on a switch is all devices connected to a single switch port.

A host wants to send a message to another host with the IP address 155.99.8.157. The host does not know the hardware address of the destination device. Which protocol can be used to discover the MAC address?

ARP

Which of the following methods helps to detect lost packets?

Acknowledgements Sequencing

Which of the following is a list of Layer 2 devices?

Bridge, network interface card, switch

Which of the following statements are true about bridges?

Bridges connect two network segments with the same network address Bridges broadcast messages from one network segment to another

You want to implement an Ethernet network using the 1000 BaseT standard using the minimum hardware specifications possible. Which of the following should you include in your plan?

CAT5e twisted pair cable RJ-45 connectors

Which of the following are true about Gigabit Ethernet?

Can use both copper and fiber optic Use CSMA/CD

Which of the following mechanisms are used on Ethernet networks to control access to the transmission medium

Collision detection Backoff

You want to enable full duplex on your Ethernet network. Which of the following should you do?

Configure NICs and switch interfaces to use full duplex

You manage a small LAN for a branch office. The branch office has six file servers. You want to use full-duplex Ethernet and offer guaranteed bandwidth to each server. How should you design the network?

Connect all network devices to a switch. Connect each server to its own switch port.

At which layer of the OSI model do network switches operate?

Data Link

What is the purpose of the CRC in network communications?

Detect data errors

You manage a small network with two buildings, 1,000 meters apart. You want to connect the two buildings together with a switch. You are concerned about electromagnetic interference on the cable connecting the two buildings. What should you include in your plan?

Fiber optic cables with LC connectors 1000BaseLX Ethernet

Which two of the following functions are performed by IP?

Identifying hosts with the IP address Routing datagrams to hosts

What role does ARP play in the routing process?

If a router does not know a destination device's MAC address, it sends an ARP broadcast containing the IP address and requesting the MAC address

What is the backoff on an Ethernet network?

It is the random amount of time a device waits before re-transmitting after a collision

Which two of the following statements accurately describe half-duplex Ethernet?

It sends both signals along the same wire. It uses collision detection and recovery

You are deploying a new 10GB Ethernet network using Cat6 cabling. Which of the following are true concerning this media

It supports 10 Mbps Ethernet connections It includes a solid plastic core

Which two of the following statements accurately describe full-duplex Ethernet?

It uses direct point-point connections between the sender and receiver It is collision free

Which of the following are functions of the MAC subplayer in the OSI model?

Letting devices on the network have access to the LAN Defining a unique hardware address for each device on the network

The following names are given to data at various stages in the encapsulation process. 1. Packets 2. Bits 3. Segments 4. Frames

Network, Physical, Transport, Data Link

Which of the following describes the function of a dedicated wireless access point on an enterprise network?

On an enterprise network, a wireless access point only acts as a bridge between the wireless segment and the wired segment on the same subnet.

An enterprise wireless network is different from a home wireless network in which of the following ways?

On an enterprise wireless network, host devices need to be able to stay connected when they move around the enterprise or campus An enterprise wireless network must cover an area as large as a corporate or university campus and have overlapping signal coverage. Wireless network devices in an enterprise wireless network are dedicated devices that perform a single function

An Internet server has a single network interface that has been assigned an IP address. The server is running both the FTP and HTTP services. A client computer initiates a session with the HTTP server. How is the HTTP request from the client routed to the correct service running on the server?

Port or socket number

You are asked to design a LAN segmentation solution for Company AGH. They have three workgroups, Accounting, Sales, and Service. Most network traffic is localized within the individual workgroups, but some traffic crosses between each group. Company AGH is especially concerned about the security of information within the Accounting department. Which segmentation device meets the needs while providing the most economical simplest administration?

Router

You have been put in charge of connecting two company networks that were previously separated. You need to connect a 100BaseTx Ethernet network with an older token ring network. Most traffic will be localized within each network, with only a little traffic crossing between networks. Both networks are using the TCP/IP protocol suite. Which connectivity device would be the best choice in this situation?

Router

Which of the following are general advantages of using routers on your network?

Routers provide more features, such as flow control, error detection and congestion control, than switches or bridges. Routers provide multiple links between devices to support load balancing Routers support multiple routing protocols for better flexibility

Routing data between computers on a network requires several mappings between different addresses. Which of the following statements is true?

Routers use ARP to resolve known IP addresses into MAC addresses by broadcasting requests to the network

You want to implement an Ethernet network using the 100Base-FX standard using the minimum hardware specifications possible. You need to support distances of up to 1,000 meters. Which of the following should you include in your plan?

SC connectors Single-mode fiber optic cable

A client computer starts to download some files from a FTP server named FTPsvr1. While the first download is in progress, the user opens a second instance of the FTP program and initiates a second download. What does the server and the client use to keep each download separate?

Session ID

You have several hosts, a switch and a router as shown in the exhibit. Workstation3 sends an IP packet to Workstation1. the packet is received by the Cisco 2600 router as shown in the diagram. When the packet leaves the router, which source and destination IP addresses will be contained in the IP packet?

Source IP address = 192.168.11.11 Destination IP address = 192.168.10.11

You have several hosts a switch and a router as shown in the exhibit. Workstation1 sends an IP packet to Workstation3. When the packet reaches Workstation3, which source addresses are in teh fram and packet?

Source MAC address = 000b5f2a2223 Source IP address = 192.168.10.11

A home wireless access point is usually three devices in one. Which of the following devices are usually found in a home wireless access point?

Switch, Router, Wireless Access Point

Which of the following accurately describe how switches and hubs work?

Switches use the hardware address in the frame to send it only to the port where the device is located. A hub repeats frames to all ports, regardless of the destination address.

How does TCP handle data sequencing?

TCP breaks user data into segments, numbers each segment, places them in the correct sequence, and sends each one in order, waiting for an acknowledgement before sending the next segment

Which of the following lists accurately describes TCP and UDP?

TCP: connection-oriented, reliable, sequenced, high overhead UDP: connectionless, unreliable, unsequenced, low overhead

What is the first thing that happens when a collision occurs on an Ethernet network?

The device that detected the collision transmits a jam signal

Workstation2 needs to send data to Workstation3. It sends out an ARP request for the address of the default gateway. Which of the following are true of this request.

The switch sends the ARP request to Workstation1 and the router. Only the router will respond with an address of 000b5f2a2222

Which is the primary role of a firewall?

To protect networks and workstations by allowing or denying network traffic. The firewall does this using a configured set of rules.

You have two Cisco 2960 switches, each with 24 Fast Ethernet ports and two SFP Gigabit uplink ports. You want to connecte the two switches together at a distance of 300 meters. How should you connect the two switches?

Use fiber optic cables with LC connectors Use ports Gi0/1 or Gi0/2