IT-212 Module 1 - NP6.0 Exam
Match each TCP/IP layers with its function.
Breaks the data into pieces == Transport Prepares the data to be sent == Application Adds physical addresses == Link Adds logical addresses == Internet
Which of the following cable types often includes a solid plastic core that keeps the twisted pairs separated? -Cat 5 -Cat 5e -Cat 6 -Cat 3
Cat 6
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? -Extranet -Intranet -Client-server -Peer-to-peer
Client-server
Which of the following features does UDP provide? (Select two.) -Packet acknowledgement -Lost packet retransmission -Data packet sequencing -Connectionless datagram services -Low overhead
Connectionless datagram services Low overhead
What is the basic purpose of the OSI Physical layer? -Define when devices have access to the LAN. -Define how physical network devices are identified on a network. -Maintain a list of known networks and neighboring routers. -Coordinate rules for sending and receiving electrical signals.
Coordinate rules for sending and receiving electrical signals
Which of the following functions are performed by the OSI Transport layer? (Select three.) -Consistent data formatting between dissimilar systems -Packet formatting for delivery through the medium -Data segmentation and reassembly -Reliable message delivery -Path identification and selection -End-to-end flow control -Media access control, logical topology, and device identification
Data segmentation and reassembly Reliable message delivery End-to-end flow control
Which of the following describes the point where the service provider's responsibility to install and maintain wiring and equipment ends and the customer's begins? -Punch down block -Vertical cross connect -IDF -Demarc
Demarc
You are the network administrator for a small organization. Recently, you contracted with an ISP to connect your organization's network to the internet. Since doing so, it has come to your attention that an intruder has invaded your network from the internet on three separate occasions. Which type of network hardware should you implement to prevent this from happening again? -Hub -Switch -Router -Firewall
Firewall
Which of the following hardware devices regenerate a signal out of all connected ports without examining the frame or packet contents? (Select two.) -Router -Hub -Switch -Repeater -Bridge
Hub Repeater
In the OSI model, which of the following functions are performed at the Application layer? (Select two.) -Integration of network functionality into the host operating system. -Communication setup, maintenance, and teardown. -Standard setting for sending and receiving signals. -Device control for data transmission rates. -Enabling of communication between network clients and services.
Integration of network functionality into the host operating system. Enabling of communication between network clients and services.
Which of the following BEST describes how a switch functions? -It connects multiple cable segments (or devices) and forwards frames to the appropriate segment. -It connects multiple segments of different architectures. It translates frames and broadcasts them to all of its ports. -It connects multiple segments of different architectures. It translates frames and forwards them to the appropriate segment. -It connects multiple cable segments (or devices) and broadcasts frames to all of its ports.
It connects multiple cable segments (or devices) and forwards frames to the appropriate segment.
Which of the following BEST describes how a switch functions? -It connects multiple segments of different architectures. It translates frames and broadcasts them to all of its ports. -It connects multiple cable segments (or devices) and broadcasts frames to all of its ports. -It connects multiple segments of different architectures. It translates frames and forwards them to the appropriate segment. -It connects multiple cable segments (or devices) and forwards frames to the appropriate segment.
It connects multiple cable segments (or devices) and forwards frames to the appropriate segment.
Which of the following terms identifies the wiring closet in the basement or ground floor that typically includes the demarcation point? -110 block -MDF -IDF -Horizontal cross connect
MDF
You have a large TCP/IP network and want to keep a host's real-time clock synchronized. Which protocol should you use? -SMTP -FTP -SNMP -NTP
NTP
At which OSI layer does a router operate to forward network messages? -Physical -Data Link -Network -Transport
Network
You're installing network wiring for a new Ethernet network at your company's main office building. The project specifications call for Cat 5e UTP network cabling and RJ45 wall jacks. Near the end of the project, you run out of wire before the last few runs are complete. You have a spool of Cat 3 network cable in storage. Upon closer inspection, it appears very similar to the Cat 5e wiring. To finish the project, should you use the Cat 3 cabling as a substitute for the Cat 5e cabling? -Yes. You can use Cat 3 cabling as a substitute for Cat 5e cabling since they're electrically identical. -No. The sheath surrounding Cat 5e cabling is much thicker than the Cat 3 sheath, creating an extra layer of shielding that reduces crosstalk and supports higher data rates. -No. Cat 5e cabling uses a thicker copper wire than Cat 3 cabling, enabling higher data transmission rates. -No. Cat 5e cabling has more twists per inch than Cat 3 cabling, reducing crosstalk and supporting higher data rates.
No. Cat 5e cabling has more twists per inch than Cat 3 cabling, reducing crosstalk and supporting higher data rates.
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? -Star -Full mesh -Partial mesh -Bus
Partial mesh
Which of the following terminates individual wires from a 25-pair or 100-pair cable using female RJ45 ports? -110 block -Horizontal cross connect -66 block -Patch panel
Patch panel
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? -Multiple access -Client-server -Polling -Peer-to-peer
Peer-to-peer
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 -Polling -Client-server -Multiple access
Peer-to-peer
At which layer of the OSI model do hubs operate? -Physical -Data Link -Internet -Layer 3
Physical
Which of the following are included as part of the Data Link layer specifications? (Select two.) -Digital data conversion -Physical network device identification -Cable and connector specifications -Physical topology -Data transmission between hosts
Physical network device identification Data transmission between hosts
You're adding new wires in your building for some new offices. The building has a false ceiling that holds the lights and provides an air path for heating and air conditioning. You'd like to run your Ethernet cables in this area. Which type of cable must you use? -Plenum-rated cable -Fiber optic cables -Cat 5e or Cat 6a cables -STP cables
Plenum-rated cable
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 --> Application Data Link --> Network interface Application --> application Session--> Application Network --> Internet Transport --> 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? -HTTP -Presentation -Protocol data unit (PDU) -Session
Protocol data unit (PDU)
Which of the following connectors is used with Ethernet 100BaseTX networks? -RJ45 -GG45 -BNC -ST
RJ45
Routing data between computers on a network requires several mappings between different addresses. Which of the following statements is true? -Routers use DNS to resolve MAC addresses of diskless workstations into IP addresses based on the information contained in other routers' routing tables. -ICMP lets routers bypass the general network broadcast by providing a dynamic table of IP-to-MAC address mappings. -Diskless workstations use ARP to ask a server for an IP address. -Routers use ARP to resolve known IP addresses into MAC addresses.
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 -IMAP4 -ICMP -POP3
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? -RST -SYN/ACK -ACK -SYN/RST
SYN/ACK
You have a small network that uses a switch to connect multiple devices. Which physical topology are you using? -Bus -Star -Mesh -Ring
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? -SIP -UDP -FTP -TCP
TCP
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.
The router is the default gateway. When it receives from Workstation3, it examines the Layer 3 address in the packet to locate the destination device. It then creates a new frame and modifies the source and destination Layer 2 addresses (MAC addresses) as follows: >Layer 2 source address is its own MAC address on the same segment as the destination device: 000b5f2a2222 >Layer 3 destination address is the MAC address of the destination device: 080046987654 The source and destination Layer 3 addresses (IP addresses) do not change: >The source IP address is the IP address of Workstation3: 192.168.11.11 >The destination IP address is the IP address of Workstation2: 192.168.10.12
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
You have a network that occupies all three floors of a building. The WAN service provider has installed the line in a wiring closet on the main floor. You have a wiring closet on the two remaining floors directly above the wiring closet on the main floor. What would you use to connect the wiring closets together? -Vertical cross connect -Demarc extension -Horizontal cross connect -Smart jack
Vertical cross connect
How do switches and bridges learn where devices are located on a network? -When a frame enters a port, the source IP address is copied from the frame header. -When a frame enters a port, the destination IP address is copied from the frame header. -When a frame enters a port, the source MAC address is copied from the frame header. -When a frame enters a port, the destination MAC address is copied from frame header.
When a frame enters a port, the source MAC address is copied from the frame header.
Which of the following tasks is associated with the Session layer? -Port number assignment -IP address assignment -Data block breakdown -Connection establishment
Connection establishment
Which of the following hardware devices links multiple networks and directs traffic between networks? -Repeater -Bridge -Hub -Router
Router
