Testout Network Pro Section 2

Which of the following tasks is associated with the Session layer?

Connection establishment

You've recently installed a new Windows server. To ensure system time accuracy, you've loaded an application that synchronizes the hardware clock on the server with an external time source on the internet. Now you must configure your network firewall to allow time synchronization traffic through. Which of the following ports are you MOST LIKELY to open on the firewall?

123

Which port number is used by SNMP?

161

Which port does Telnet use?

23

You're configuring a network firewall to allow SMTP outbound email traffic and POP3 inbound email traffic. Which of the following TCP/IP ports should you open on the firewall? (Select two.)

25 110

During network transmission, data is transferred to various routers, which forward the data to the appropriate network. If the source and destination network addresses reside on the same network, which protocol is used to determine the destination IP's MAC address?

ARP

Match each networking function or device on the left with its associated OSI model layer on the right.

Application layer- HTTP Presentation layer- Encapsulation Session layer- Session ID number Transport layer- Port number Network layer- Router Data Link layer- Switch Physical layer- Modem

Match each TCP/IP layers with its function.

Breaks the data into pieces.- Transport Adds physical addresses.- Link Prepares the data to be sent.- Application Adds logical addresses.- Internet

Which of the following topologies connects all devices to a trunk cable?

Bus

What is the purpose of a frame check sequence (FCS) footer?

Checksum error detection

You've implemented a network where hosts are assigned specific roles, such as file sharing and printing roles. Other hosts access those resources, but they don't host services of their own. Which type of network do you have?

Client-server

What is the basic purpose of the OSI Physical layer?

Coordinate rules for sending and receiving electrical signals.

In the OSI model, which of the following functions are performed at the Presentation layer? (Select two.)

Data encryption and compression Data format specifications

In the OSI model, which of the following functions are performed at the Application layer? (Select two.)

Enabling of communication between network clients and services. Integration of network functionality into the host operating system.

Which of the following is the process of breaking a message into packets, adding controls and other information, and then transmitting the message through the transmission medium?

Encapsulation

Which of the following protocols allows hosts to exchange messages to indicate problems with packet delivery?

ICMP

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 destination device's IP address and requesting its MAC address.

Workstation3 has started communicating with Workstation2. It sends a frame to the 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.

Layer 2 source address- 000b5f2a2222 Layer 3 source address- 192.168.11.11 Layer 2 destination address- 080046987654 Layer 3 destination address- 192.168.10.12

Workstation2 needs to send data to Workstation3. Identify the Layer 2 and Layer 3 addresses Workstation2 will use to send the data by dragging the corresponding address from the list on the left to its location on the right.

Layer 2 source address- 080046987654 Layer 3 source address- 192.168.10.12 Layer 2 destination address- 000b5f2a2222 Layer 3 destination address- 192.168.11.11

Which of the following features does UDP provide? (Select two.)

Low overhead Connectionless datagram services

Your manager has asked you to implement a network infrastructure that will accommodate failed connections. Which of the following network topologies provides redundancy for a failed link?

Mesh

You have a network that uses a logical bus topology. How do messages travel through the network?

Messages are broadcast to all devices connected to the network.

Which of the following functions are performed by the OSI Transport layer? (Select three.)

Reliable message delivery End-to-end flow control Data segmentation and reassembly

You have a network that uses a logical ring topology. How do messages travel through the network?

Messages travel from one device to the next until they reach the destination device.

Which of the following geographic network types is typically managed by a city as a public utility?

Metropolitan area network (MAN)

You have a large TCP/IP network and want to keep a host's real-time clock synchronized. Which protocol should you use?

NTP

Your manager has asked you to implement a wired network infrastructure that will accommodate failed connections. You don't have a large budget, so you decide to provide redundancy for only a handful of critical devices. Which of the following network topologies should you implement?

Partial mesh

You've implemented a network where each device provides all other devices on the network with access to shared files. Which type of network do you have?

Peer-to-peer

Which of the following are included as part of the Data Link layer specifications? (Select two.)

Physical network device identification Data transmission between hosts

Match each layer of the TCP/IP model on the left with the corresponding layer of the OSI model on the right. Each option on the left can be used more than once.

Presentation layer- Application Data Link layer- Network Application layer- Application Session layer- Application Network layer- Internetwork Transport layer- Transport

Which term does the OSI model use that's different from the TCP/IP model in reference to the terms frame, packet, and segment?

Protocol data unit (PDU)

Which of the following topologies connects each device to a neighboring device?

Ring

In the OSI model, what is the primary function of the Network layer?

Route messages between networks.

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.

Your company has just acquired another company in the same city. You need to integrate the two email systems so that messages can be exchanged between email servers. Currently, each network uses an email package from a different vendor. Which TCP/IP protocol enables message exchange between systems?

SMTP

TCP is a connection-oriented protocol that uses a three-way handshake to establish a connection to a system port. Computer 1 sends a SYN packet to Computer 2. Which packet does Computer 2 send back?

SYN/ACK

You have a small network that uses a switch to connect multiple devices. Which physical topology are you using?

Star

You're an application developer, and you're writing a program for exchanging video files through a TCP/IP network. You need to select a transport protocol that will guarantee delivery. Which TCP/IP protocol provides this capability?

TCP

Which of the following network services or protocols uses TCP/IP port 69?

TFTP

During TCP/IP communication between two network hosts, information is encapsulated on the sending host and decapsulated on the receiving host using the OSI model. Match the information format on the left with the appropriate layer of the OSI model on the right.

Transport layer- Segments Network layer- Packets Data Link layer- Frames Physical layer- Bits