cis419 network+

How fast can Category 5e transfer data? 10 Mbps 100 Mbps 1000 Mbps 10 Gbps

1000 Mbps

What is a DNS MX record? An address record An IPv6 address record A record for email servers A pointer record that points to a canonical name

A record for email servers

Which data flow is not supported by IPv6? Broadcast Anycast Unicast Multicast

Broadcast

What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask? A. 14 B. 15 C. 16 D. 30 E. 31

D. 30

What format can be used to represent the low order 64 bits of an IPv6 address by reformatting a devices MAC address? EUI-48 IEEE 802.3ar IEEE 802.3ab EUI-64

EUI-64

___ is the minimum subnet that can support only two devices. /31 /30 /29 /28

/30

Application layer is implemented in End system NIC Ethernet None of the mentioned

End system

Gateway serves as a routing host to another network. True False

False

command displays IP address configuration parameters on a Windows PC

ipconfig

command to displaying NETBIOS info in Windows

nbtstat

Command use to look-up FQDN in windows

nslookup

Transmission data rate is decided by network layer physical layer data link layer transport layer

physical layer

Which of the following protocol to TCP port matching is correct? Protocol:...................TCP Port: FTP............................... 80 SMTP........................... 22 SSH.............................. 23 DNS .............................25 Telnet...........................53 HTTP............... 20 and 21 (a)FTP 20 and 21, SSH 22, Telnet 23, SMTP 25, DNS 53, HTTP 80 (b)FTP 20 and 21, SSH 23, Telnet 25, SMTP 25, DNS 80, HTTP 53 (c)FTP 20 and 21, SSH 22, Telnet 25, SMTP 23, DNS 53, HTTP 80 (d)FTP 20 and 23, SSH 22, Telnet 25, SMTP 25, DNS 53, HTTP 80

(a)FTP 20 and 21, SSH 22, Telnet 23, SMTP 25, DNS 53, HTTP 80

You have a subnet mask of 255.255.255.248. What is the prefix notation? /29 /28 /27 /26

/29

How many bits are used for an IPv6 address? 256 128 64 32

128

How many hosts can you have with a subnet of 192.168.1.0/28? 30 14 16 6

14

How many subnets do you get with a subnet of 192.168.1.0/28? 12 13 16 20

16

What is the network address for APIPA? 169.254.0.0/16 172.16.0.0/16 192.168.0.0/24 10.0.0.0/8

169.254.0.0/16

Which of the following protocol to TCP port matching is correct? Protocol------- TCP port 1 IMAP4 ----------A 3892 2 LDAP -----------B 3389 3 HTTPS----------- C 143 4 RDP -------------D 443 1A, 2B, 3C, 4D 1C, 2A, 3D, 4B 1A, 2C, 3D, 4B 1B, 2A, 3C, 4D

1C, 2A, 3D, 4B

Which of the matching from the following diagram is correct? Network Class 1-Local-area network (LAN) 2-Wide-area network (WAN) 3-Metropolitan-area network (MAN) 4-Personal-area network (PAN) Definition A-It interconnects locations scattered throughout a metropolitan area. B-It is a network whose scale is even smaller than a LAN. An example of this type of network is a connection between a PC and a digital camera via a universal serial bus. C-It interconnects network components within a local region. D-It interconnects network components that are geographically dispersed between two locations. 1C, 2D, 3A, 4B 1D, 2C, 3B, 4A 1B, 2D, 3A, 4C 1A, 2D, 3C, 4B

1C, 2D, 3A, 4B

Which of the following matching is true concerning the unit name and its corresponding OSI layer location? OSI Reference Model Layer 1-Application layer-----------A-Bits 2-Transport layer-------------B Frames 3-Network layer-------------C-Segment 4-Data link layer-------------D Data 5-Physical layer--------------E-Packets 1A, 2B, 3C, 4D, 5E 1D, 2C, 3E, 4B, 5A 1D, 2E, 3C, 4B, 5A 1D, 2A, 3E, 4B, 5C

1D, 2C, 3E, 4B, 5A

Which of the matching from the following table is correct? Device 1-WAN link 2-Client 3-Server 4-Hub 5-Switch 6-Router 7-Media Definition A-This serves up resources to a network. B-It is an older technology that interconnects network components such as clients and servers. It has variable number of available ports. C-It is a device which makes its forwarding decisions based on logical network addresses. D-It might be a workstation, laptop, smartphone with wireless capabilities, or a variety of other end-user terminal devices. E-This device can be copper or fiber-optic cable. F-It interconnects network components, and it has a variety of port densities. It does not simply take traffic in on one port and blast that traffic out all other ports. Rather, it learns which devices reside off of which ports. G-It is the link that interconnects networks

1G, 2D, 3A, 4B, 5F, 6C, 7E

Which option is not a valid representation of the 2001:0000:35d0:0000:5600:abed:e930:0001 address? 2001:0000:35d0::5600:abed:e930:0001 2001::35d0:0:56:abed:e930:0001 2001:0:35d0:0:5600:abed:e930:1 2001::35d0:0:5600:abed:e930:1

2001::35d0:0:56:abed:e930:0001

You have an IP address with a prefix notation of /27. What is the dotted-decimal form of the subnet mask? 255.255.255.0 255.255.255.128 255.255.255.192 255.255.255.224

255.255.255.224

How many bytes are in an IEEE 802.1Q VLAN tag? 2 4 6 8

4

The OSI model has _______ layers. 4 5 6 7

7

The number of layers in ISO OSI reference model 5 7 6 None of the mentioned

7

What is the IEEE standard that is used to enforce user authentication? 802.11i 802.2i 802.1X 802.3

802.1X

Which IEEE standard defines wired Ethernet as it is used on modern networks? 802.5 802.16 802.3 802.1

802.3

RS-232 has how many pins? What type of connection - Synchronous or Asynchronous?

9 - Asynchronous

In TCP IP Model, when data is sent from device A to device B, the 5th layer to receive data at B is Application layer Transport layer Link layer Session layer

Application layer

Which type of transmission synchronization technique uses start and stop bits at the beginning and end of a data frame? Synchronous Isochronous Asynchronous Biochronous

Asynchronous

The term packet is used fairly generically to refer to protocol data unit (PDU). There are PDU equivalent names in the different OSI layers. What is the name of the unit in the physical layer of the OSI reference model? Segment Frames Bits Packet

Bits

An IEEE 802.1D port goes through four states when transitioning to the forwarding state. What is the correct order? Blocking, learning, listening, forwarding Learning, listening, blocking, forwarding Blocking, listening, learning, forwarding Listening, blocking, learning, forwarding

Blocking, listening, learning, forwarding B-Li-Le-F

This layer is an addition to OSI model when compared with TCP IP model Application layer Presentation layer Session layer Both Session and Presentation layer

Both Session and Presentation

What is the name of the VoIP component that maintains a network's dial plan (routes)? Call agent Policy server Gateway SIP

Call agent

What does CSMA/CA stand for?

Carrier Sense Multiple Access with Collision Avoidance

What does CSMA/CD stand for?

Carrier Sense Multiple Access/Collision Detection

What is the minimum media type that must be used to run 1000BASE-T? Cat 3 Cat 5 Cat 5e 10 Base 2

Cat 5e

Which category of UTP cabling is used for 10 Gigabit Ethernet? (Select all that apply.) Category 6a Category 6 Category 10 Category 5e

Category 6a

Which of the following statements is true? (Choose two.) -Client/server networks can easily scale, which might require the purchase of additional client licenses. -Client/server networks can cost more than peer-to-peer networks. For example, client/server networks might require the purchase of dedicated server hardware and a network OS with an appropriate number of licenses. -Peer-to-peer networks can be very difficult to install. -Peer-to-peer networks typically cost more than client/server networks because there is no -requirement for dedicated server resources or advanced NOS software.

Client/server networks can easily scale, which might require the purchase of additional client licenses. Client/server networks can cost more than peer-to-peer networks. For example, client/server networks might require the purchase of dedicated server hardware and a network OS with an appropriate number of licenses.

Which IP addresses assignment method leads to less administrative efforts for Information Technology professionals? Statically Manually BOOTP DHCP

DHCP

What are the steps a DHCP client goes through when requesting an IP address? Make sure they are in the correct order. DHCPDISCOVER, DHCPOFFER, DHCPREQUEST, DHCPACK DHCPDISCOVER, DHCPREQUEST, DHCPOFFER, DHCPACK DHCPOFFER, DHCPDISCOVER, DHCPREQUEST, DHCPACK DHCPACK, DHCPDISCOVER, DHCPREQUEST, DHCPOFFER

DHCP"D"ISCOVER, DHCP"O"FFER, DHCP"R"EQUEST, DHCP''A''CK aka - DORA

What symbol can be used to represent a group of consecutive 0s in an IPv6 address? Semicolon Double semicolon Double colon Period

Double colon

An FDDI network uses which type of topology? Dual ring Ring Star Bus

Dual ring

What is the name of the device that is used primarily to secure a network? Switch VPN concentrator Firewall Router

Firewall

Identify the statement which cannot be associated with OSI model -A structured way to discuss and easier update system components -One layer may duplicate lower layer functionality -Functionality at one layer no way requires information from another layer -None of the mentioned

Functionality at one layer no way requires information from another layer

Which of the following layers of the OSI reference model is primarily concerned with forwarding data based on logical addresses? Physical layer Data link layer Network layer Presentation layer

Network layer

A Bluetooth connection between a mobile phone and a headset is an example of what type of network category? CAN LAN MAN PAN

PAN

What type of UTP cabling is used in building open-air returns to reduce the amount of pollution created if a fire should occur? XPS Nonplenum Plenum PVC

Plenum

Which of the following applies to the diagram shown here? (Choose two.) The diagram represents a full-mesh WAN topology. It directly connects every site to every other site. The directly connected sites allow suboptimal path to be located instead relaying traffic via another site. There is a WAN link from each remote site to the main site.

The diagram represents a full-mesh WAN topology. It directly connects every site to every other site.

WINS is an implementation of NetBIOS name service True False

True

What is the name of a Layer 2 connection that supports transporting multiple VLANs at the same time between devices? Access port Trunk port EtherChannel port Multimode port

Trunk port

Which layer is responsible for process to process delivery? network layer transport layer session layer data link layer

transport layer

Which layer links the network support layers and user support layers session layer data link layer transport layer network layer

transport layer

IPv6 no longer supports the ability to fragment packets. True False

true

A more efficient design which involves the logical separation of a switch ports into different broadcast domains is known as a ________. subnet collision domain virtual local-area network (VLAN) LAN

virtual local-area network (VLAN)

The number of layers in TCP/IP stack 5 7 6 None of the mentioned

None of the mentioned

Which of the following layers is not part of the TCP/IP protocol stack? Transport Application Presentation Internet

Presentation

John, the network administrator of XYZ Corporation, is interested in changing the format of text from American Standard Code for Information Interchange (ASCII) to Extended Binary Code Decimal Interchange Code (EBCDIC). In addition, his IT manager requested that all sensitive and confidential information on their servers should be protected by applying the appropriate encryption. What OSI reference model layer is responsible for data format such as encryption? Presentation layer (Layer 6) Data-link layer (Layer 2) Session layer (Layer 5) Transport layer (Layer 4)

Presentation layer (Layer 6)

What is the name of the technology that will soon change the landscape of modern networking by moving the control functionality of a networking device to a central managed location? Multicast routing protocols Virtual networks Network virtualization Software-defined networking (SDN)

Software-defined networking (SDN)

Which wiring standard is used on modern Ethernet connectors and jacks? TIA/EIA-568-B TIA/EIA-568-A IEEE 802.3 IEEE 802.2

TIA/EIA-568-B

How does TCP/IP model map to OSI model?

The application layer of the TCP/IP model maps to the first three layers, i.e., application, session, and presentation layer of the OSI model. The transport layer of the TCP maps directly to the transport layer of the OSI model. The internet layer of the TCP/IP model maps directly to the network layer of the OSI model. The last two layers of the OSI model map to the network layer of the TCP/IP model. TCP/IP is the most widely used model as compared to the OSI model for providing communication between computers over the internet.

What is the purpose of a virtual desktop? To give users access to their data from any device and location To save money To store users information in a data center Better authentication and security

To give users access to their data from any device and location

Which of the following transport layer protocol of the OSI reference model is a connection-oriented protocol that provides reliable transport between two communicating hosts? Transmission Control Protocol (TCP) Transport Control Protocol (TCP) User datagram Protocol (UDP) Internetwork Packet Exchange (IPX)

Transport Control Protocol (TCP)

A converged network is a network that has the capabilities of transporting multiple types of traffic such as voice, video, and data, which can offer significant cost savings to organizations. True False

True

An routing table contains many routes where each route represents a device's IP address. True False

True

At upper layers of the OSI reference model, bits are grouped together into protocol data units (PDUs) or data service units. True False

True

Broadband bandwidth usage divides the bandwidth into channels for use with multiple communications streams. True False

True

The actual traffic flow determines the logical topology, while how components are physically interconnected determines the physical topology. True False

True

OSI stands for open system interconnection operating system interface optical service implementation none of the mentioned

open system interconnection

CSMA/CD is specified in the IEEE 802.3 standard for Ethernet network. True False

trUE

command to displays the path between your device (the source) and a destination IP address

tracert

What is the purpose of RTP in VoIP? It carries voice and data. It works with a PBX. It connects the VoIP phone to an analog phone. It manages the dial plan.

It carries voice and data.

What is the purpose of SIP in VoIP? It carries voice and data. It connects the VoIP phone to an analog phone. It sets up the VoIP phone calls. It works with a PBX.

It sets up the VoIP phone calls.

On which OSI layer is encryption performed? Layer 6 - The presentation layer Layer 5 - The session layer Layer 7 - The application layer Layer 4 - The network layer

Layer 6 - The presentation layer

What is the name of the address that is used by a switch to identify specific devices? MAC IP LLC ARP

MAC

What is the name that is used to reference the central primary cable distribution point in a building? MDF IDF LDF PDF

MDF

What type of media is used using the 100Base-FX Ethernet standard? MMF SMF Category 5e Category 6a

MMF

Which of the following is not a characteristic of the Media Access Control (MAC) sublayer of the data link layer (Layer 2) of the OSI reference layered model? -The MAC sublayer uses a physical address call a MAC address, which is a 48-bit (6-byte) address assigned to a device network interface card. -Layer 2 devices view a network as a logical topology. -Method of transmitting on the media. -The use of flow control on a network to prevent a receiver from being overwhelmed.

Method of transmitting on the media.

To have effective port monitoring and see all traffic on the network, which of the following needs to be configured? STP Root bridge Listening Mirroring

Mirroring

command use to find layer3 IP address to corresponding layer 2 MAC address

ARP

The functionalities of presentation layer includes Data compression Data encryption Data description All of the mentioned

All of the mentioned

Transport layer is implemented in End system NIC Ethernet None of the mentioned

End system

What is the MAC address that is used to send a frame to every local Ethernet device? FF00.0000.0000 FFFF.FFFF.FFFF FFFF.0000.0000 0000.0000.0000

FFFF.FFFF.FFFF

In an IP network, each router is given only one unique IP address so packets can be properly routed. True False

False

Switching is associated with Layer 2 (data link layer) and Layer 3 (network layer). True False

False

In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______ Added Removed Rearranged None of the mentioned

Removed

How does a switch prevent loops? IEEE 802.1Q IEEE 802.1D IEEE 802.11 IEEE 802.3

IEEE 802.1D

You can configure user authentication at Layer 2 of the OSI. What IEEE standard would you use for this? IEEE 802.1X IEEE 802.1D IEEE 802.2x IEEE 802.3af

IEEE 802.1X

What is the IEEE standard for PoE? IEEE 802.1Q IEEE 802.1D IEEE 802.11 IEEE 802.3af

IEEE 802.3af

What is the name of the address that is used by a router (at Layer 3) to identify specific devices? MAC IP LLC ARP

IP

_____ is a layer-3 protocol while ___ is a layer-4 protocol. HTTP, TCP IP, TCP TCP, HTTP TCP, IP

IP, TCP

Which of the following is not a layer of the Open Systems Interconnect (OSI) reference model? Physical layer Data link layer Internet access layer Presentation layer

Internet access layer

What is the purpose of a DNS server? Routing packets to the Internet Blocking packets from the Internet Connecting devices at Layer 2 of the OSI Providing an IP address for an fully qualified domain name

Providing an IP address for an fully qualified domain name

What is the most common connector that is used with UTP cabling carrying Ethernet traffic? RJ-48 RJ-45 RJ-11 RJ-14

RJ-45

Which two types of media are twisted-pair cable? STP and UTP MMF and SMF RG-59 and RG-58 RJ-11 and RJ-45

STP and UTP

Delimiting and synchronization of data exchange is provided by Application layer Session layer Transport layer Link layer

Session Layer

In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is Application layer Transport layer Link layer Session layer

Session layer

Which OSI reference model layer is responsible for the following? (a) Setting up session; (b) Maintaining a session; (c) Tearing down a session. Presentation layer (Layer 6) Data link layer (Layer 2) Session layer (Layer 5) Transport layer (layer 4)

Session layer (Layer 5)

Which option is a benefit of implementing a client/server arrangement over a peer-to-peer arrangement? (Choose two.) Easy installation Cheaper Simplified administration Easy scalability

Simplified administration Easy scalability

Which type of fiber-optic cabling only allows an individual light path through it? Unicast mode Stream mode Multimode Single-mode

Single-mode

What is the most popular topology that is used on modern LANs? Bus Star Ring Partial mesh

Star

How is a switch selected as a root bridge for spanning tree if the bridge priorities are the same? The switch with the lowest IP address will become the root bridge. The switch with the lowest MAC address will become the root bridge. The switch with the highest MAC address will become the root bridge. The switch with the highest IP address will become the root bridge.

The switch with the lowest MAC address will become the root bridge.

Which address is used in an internet employing the TCP/IP protocols? physical address and logical address port address specific address all of the mentioned

all of the mentioned

Which of the following is not a network category based on the geographic dispersion of network components? Local-area network (LAN) World-area network (WAN) Campus-area network (CAN) Metropolitan-area network (MAN) Personal-area network (PAN)

WAN

What are the advantages of the layered architecture in OSI or TCP/IP model?

Well defined role for each layer. Well defined interface between layers. Each layer uses the services of the layer below; in other words each layer provides some service to the layer above Changes are one layer do not affect other layers, provided that the interfaces between the layers do not change drastically It distinctly separates services, interfaces, and protocols

What is the name of the mechanism used by TCP to increase and decrease the number of segments that are sent between each other before an acknowledgment is required? Buffering Synchronizing Scaling Windowing

Windowing

Which layer provides the services to user? application layer session layer presentation layer none of the mentioned

application layer

Which of the following applies to client-server network? (Choose two.) (a)Client/server networks are not commonly used by businesses. (b)Administration of client/server is more difficult than in a peer-to-peer network because the resources are located on one or more servers. (c)Client/server networks can have better performance than a peer-to-peer network because their resources can be located on dedicated servers rather than on a PC running a variety of end-user applications. (d)The above diagram 1 represents a client/server network. (e)The above diagram 2 represents a client/server network.

c,e

Describe the responsibilities of each layer in OSI model.

physical layer is responsible for transmitting unstructured data bits across the network between the physical layers of the sending and receiving devices(hardware). The data link layer corrects any errors that may have occurred at the physical layer. It ensures that any data transfer is error-free between nodes over the physical layer. It is responsible for reliable transmission of data frames between connected nodes. The network layer receives frames from the data link layer and delivers them to the intended destination based on the addresses inside the frame. It also handles packet routing. The transport layer is responsible for delivering, error checking, flow control, and sequencing data packets. It regulates the sequencing, size, and transfer of data between systems and hosts. It gets the data from the session layer and breaks it into transportable segments. The session layer will create communication channels, called sessions, between different devices. This layer is responsible for opening those sessions and ensuring that they're functional during data transfer. The presentation layer is responsible for ensuring that the data is understandable for the end system or useful for later stages. It translates or formats data based on the application's syntax or semantics. It also manages any encryption or decryption required by the application layer. The application layer is where the user directly interacts with a software application, so it is closest to the end user. When the user wants to transmit files or pictures, this layer interacts with the application communicating with the network. The application layer identifies resources, communication partners, and synchronizes communication.

command used to check IP connectivity between two network devices

ping

Which address identifies a process on a host? physical address logical address port address specific address

port address

TCP/IP model was developed _____ the OSI model. prior to after simultaneous to none of the mentioned

prior to

Command to display current ip routing table?

route

TCP/IP model does not have ______ layer but OSI model have this layer. session layer transport layer application layer None of the mentioned

session layer