TEST 1 CH1-3

In a DNS zone, what type of record holds the name-to-address mapping for IPv6 addresses?

AAAA record

In a domain, the process of allowing a user to sign on to the network from any computer on the network and get access to resources is managed by what service?

Active Directory Domain Services (AD DS)

The protocol data unit for the Physical layer of the OSI model is payload, or data. T or F

False

What is a statement of work (SOW) document?

It documents in detail the work that must be completed for a particular object, and includes specifics such as tasks, deliverables, standards, payment schedule, and work timeline.

What does the MX record do in a forward DNS zone?

It identifies the e-mail server to be used for e-mail traffic for the domain.

At what layer of the OSI model does a network switch normally operate?

Layer 2

HTTP, IMAP4, FTP, and Telnet are all examples of protocols that operate at what layer of the OSI model?

Layer 7

Another name for hardware address used in Data Link Layer?

MAC address

The proper handling procedures for substances such as chemical solvents is typically outlined in which of the following options?

Material Safety Data Sheet (MSDS)

At what layer of the OSI model do the IP, ICMP, and ARP protocols operate?

Network

What service uses UDP port 123

Network Time Protocol (NTP)

What is a document that is sent as a request to vendors to submit a proposal for a product or service that your company wants to purchase?

Request for proposal (RFP)

Which protocol is used as a signaling protocol for the initial connection between hosts, but does not participate in data transfer during the session?

SIP

What mail protocol is used to send mail messages to a server?

SMTP

What Application layer protocol can be used to monitor and gather information about network traffic and can alert network administrators about adverse conditions that need attention?

SNMP

What layer of the OSI model describes how data between applications is synced and recovered if messages don't arrive intact at the receiving application?

Session Layer

If your network consists of all connected devices connecting to one central device, such as a switch, what type of topology is being used?

Star topology

Encrypted control of remote computers using the RDP protocol is accomplished using what port number?

TCP 3389

What standard describes uniform, enterprise-wide cabling systems, regardless of who manufactures or sells the various parts used in the system?

TIA/EIA-568

You are setting up a DNS zone and have been asked to create SPF and DKIM records. What type of DNS record will hold this information?

TXT record

What are the responsibilities of the Presentation Layer?

The Presentation layer is responsible for reformatting, compressing, and/or encrypting data in a way that the application on the receiving end can read.

In the United States, who is able to activate the Emergency Alert System at the national level?

The President

The TCP and UDP protocols both exist at what layer of the OSI model?

Transport

A hexadecimal number is a number written in the base 16 number system. T or F

True

After a problem and its symptoms have been identified, a theory regarding a probable cause should be established. T or F

True

Each organization that provides host services on the public Internet is responsible for providing and maintaining DNS authoritative servers for public access. True or False?

True

Each type of cable has a prescribed bend radius, which is the radius of the maximum arc into which you can loop a cable without impairing data transmission. True or False

True

The TIA/EIA standard for wall jacks in a work area require that at least one outlet be provided for data and one for voice. True or False

True

The process of designing, implementing, and maintaining an entire network is called the system life cycle. T or F

True

What is the ARPA domain suffix utilized for?

What is the ARPA domain suffix utilized for?

On a Linux-based system, what command can be used to display TCP/IP information associated with every interface on the system?

ifconfig -a

Where is a demarc located in relation to the structured cabling of an enterprise environment?

in the Main Distribution Frame (MDF)

What command can you utilize to display TCP/IP configuration information for each network adapter installed?

ipconfig /all

A Windows computer on your network is having issues resolving queries for a specific domain, but not other domains. Other computers on the same network resolve the name just fine. What command can you issue that might fix the problem?

ipconfig /flushdns

What type of IPv6 address is fe80::8cf1:2c42:ffde:da1c?

link local address

Your company is setting itself up to distribute software made by another company. What type of document should your company procure from the developing company?

master license agreement

With a FQDN of ftp1.dallas.mycompany.com, what part is the domain name?

mycompany.com

What utility is used to verify that TCP/IP installed, bound to the NIC, configured correctly, and communicating with the network?

ping or traceroute?

When using DHCP for IPv6 (i.e. DHCPv6), what port do clients receive responses on?

port 547

The Transport layer header addresses a receiving application by a number called a

port number

At the Transport layer of the OSI, what is used to find and communicate with a particular application running on a host?

port numbers

A change coordinator functions as what type of manager?

project manager

What type of tool would you utilize to terminate twisted pair wire on a 66 or 110 block?

punchdown tool

What kind of document serves as a legally binding contract or part of a contract that defines, in plain language and in measurable terms, the aspects of a service provided to a customer?

service-level agreement

Two types of fiber optic cables

single-mode fiber (SMF) or multimode fiber (MMF)

The fundamental difference between a switch and a router?

that a switch belongs only to its local network and a router belongs to two or more local networks

What is API (application programming interface) call?

the method an application uses when it makes a request of the OS

What are neighbors?

two or more nodes on the same link

When dealing with static electricity, what kind of failure caused by static discharge shortens the life of a component, and can cause intermittent errors?

upset failure

What component of the backbone runs between a building's floors and can be used to connect an MDF and IDF or multiple IDFs?

vertical cross connect

What text editor can be used on Linux to view and edit the contents of a configuration file?

vim

What command can be used to check a domain computer's time source from a Command Prompt window?

w32tm /query /source

What type of documentation tool is a website that can be edited by users, allowing them to add files and photos and links between pages?

wiki

What type of diagram is a graphical representation of a network's wired infrastructure?

wiring schematic

What is the minimal amount of voltage required to damage an electrical component?

10 volts

Range of Private IP addresses?

10.0.0.0 - 10.255.255.255 172.16.0.0 - 172.31.255.255 192.168.0.0 - 192.168.255.255

When planning horizontal cabling, what is the maximum allowable distance that can be used?

100 meters

Loopback IPv4 address

127.0.0.1

IPv6 addresses have...

128 bits that are written as 8 blocks of hexadecimal numbers separated periods.

In the classful addressing scheme, what range of network addresses is considered a Class B?

128.0.x.y to 191.255.x.y

What is at the root level of the DNS hierarchical structure?

13 clusters of root servers that hold information used to locate TLD servers

Equipment data racks most commonly are a standard width of what measurement?

19 inches

Which of the following IPv6 addresses represents a global unicast address?

2000::/3

Standard height for a rack in rack units?

42 U

What TLDs have restrictions that ICANN is responsible for?

.arpa, .mil, .edu, and .gov

The range of well-known port numbers

0 - 1023

God cable management processes

1.Grounding requirements should be followed when running cables. 2. A cable tester should be used to verify that each segment of cable is transmitting reliably 3. Cable should not be placed across a floor where they might be damaged by traffic.

What is the purpose of a software patch ?

A software patch is a correction, improvement, or enhancement to software.

When creating network diagrams, what icon description typically represents a network router?

An icon that has a hockey-puck shape with two arrows pointing inward and two arrows pointing outward.

When creating network diagrams, what icon description typically represents a network switch?

An icon that is rectangular, which contains four arrows pointing in opposite directions.

When creating network diagrams, what icon description typically represents a network firewall?

An icon that resembles a brick wall

What is the most popular web server application?

Apache

In the TCP/IP model, what layer combines the responsibilities of the Application, Presentation, and Session layers from the OSI model?

Application

What is by far the most popular DNS server software available?

BIND

Your supervisor has asked you to configure a new prototype network with a dual stack configuration. What does this mean?

Both IPv4 and IPv6 protocols will be used on the network.

What company set the standard for the diagram symbols used to represent routers, switches, firewalls, and other devices.

CISCO

What is a defining characteristic of a bus topology based network?

Devices are daisy-chained together in a single line.

If a host's IPv6 address contains the network adapter's MAC address within the last 64 bits of the IPv6 address, what standard is being used?

EUI-64

DNS follows a centralized database model, allowing for easier management of DNS records.

FALSE

A 66 block is more suitable for data connections than the older 110 block. True or False

False

Cable that is coated with flame-resistant polyvinyl chloride (PVC) is acceptable for use in plenum areas. T or F

False

In a rack setup, a device called a KVM allows multiple consoles to connect to a single device on the rack. T or F

False

Servers that have a NOS installed require less memory, processing power, and storage capacity than clients because servers are called on to handle only light processing loads and requests from multiple clients. True or False

False

Static electricity is an electrical charge in motion. True or False.

False

The Data Link layer attaches a trailer to the end of a packet, and does not include a header. T or F

False

The FTP protocol utilizes UDP, while TFTP uses TCP for data transmission. True or False

False

What is assigned to each node on a network, which is then used by the Network layer to uniquely identify the node?

IP address

During termination of twisted pair cabling, what should be done to ensure minimal cross talk is introduced?

No more than 1 inch of the cable should be exposed.

In general, how much can a twisted-pair's cable be bent before data transmission may be impeded?

No more than four times the diameter of the cable.

What federal agency is charged with safety and health in the workplace?

Occupational Safety and Health Administration (OSHA)

In the DNS hierarchy, where is information about how to find the top-level domain servers held?

On the DNS root servers.

In the TCP/IP model, what layer is considered so simple that it is ignored entirely?

Physical Link Layer

The Windows Remote Desktop application utilizes what protocol to provide secure, encrypted transmissions?

Remote Desktop Protocol (RDP)

an example of encapsulation

The addition of a header to data inherited from the layer above in the OSI model

What does backbone cabling consist of?

The cables or wireless links that provide interconnection between the entrance facility and MDF, and between the MDF and IDFs.

You are troubleshooting a network issue on a client computer and discover that the network card has an IP address of 169.254.196.200. What does this mean?

The computer is configured to use DHCP, but was unable to lease an address

Why should you not leave more than 1 inch of exposed cable before a twisted-pair termination?

The exposure of the cable can cause transmission interference between wires.

How can you determine the manufacturer of a NIC card based on the MAC address?

The first 24 bits, known as the Organizationally Unique Identifier, identify the manufacturer.

What part of a MAC address serves as the extension identifier, or device ID?

The last 24 bits of the MAC address.

What occurs when a message is too large to transport on a network?

The message is divided into smaller messages called segments (for TCP) or datagrams (for UDP).

What occurs if a network layer protocol is aware that a packet is larger than the maximum size for its network?

The packet will be divided into smaller packets using fragmentation.

Which of the following is not one of the disadvantages of peer-to-peer networks? a. They are impractical for connecting large numbers of computers. b. They are not necessarily secure. c. They centralize user account logins. d. They lack scalability.

They centralize user account logins.

How do routers create a broadcast domain boundary?

They do not forward broadcast traffic.

The term firmware refers to programs embedded into hardware devices. When can it change?

This software only changes when a firmware upgrade is performed.

Connectionless / best-effort delivery protocol

UDP

A dedicated telephone switch or virtual switching device that connects and manages calls within a private organization, and manages call connections that exit the network through a VoIP gateway, is known by what term?

VoIP PBX (private branch exchange)

In a voice over IP setup (VoIP), what kind of device converts signals from a campus's analog phone equipment into IP data that can travel over a phone company's analog telephone lines?

VoiP gateway

What is the name of the GUI front end that is available for the Nmap utility?

Zenmap

What is a master service agreement

a contract that defines the terms of future contracts between parties, such as payment terms or arbitration arrangements

What statement accurately describes what a cable bend radius determines? a. A cable bend radius is the radius of the maximum arc into which you can loop the cable without impairing data. b. A cable bend radius determines the total number of bends that can exist in an overall cable before data is impaired. c. A cable bend radius defines the twist rate of the cable inside of the insulation. d. A cable bend radius is the radius of the minimum arc into which you can loop the cable without impairing data.

a. A cable bend radius is the radius of the maximum arc into which you can loop the cable without impairing data.

What statement regarding the Server Message Block protocol is accurate? a. It is used by Windows and UNIX-based operating systems to share files. b. It is a simple protocol used to synchronize block messages written to iSCSI drives on a network. c. It is a protocol used for accessing network-based LDAP directories. d. It is a signaling protocol used to make a connection between hosts prior to data transfer.

a. It is used by Windows and UNIX-based operating systems to share files.

What statement regarding main distribution frame or main distribution facilities is accurate? a. The MDF is the centralized point of interconnection for an organization's LAN or WAN. b. The MDF refers to the racks holding network equipment in an organization. c. The MDF and entrance facility are always in separate rooms. d. The MDF provides intermediate connection between the IDF and end-user equipment on each floor.

a.The MDF is the centralized point of interconnection for an organization's LAN or WAN.

In order to ensure that a cable is not affected by electromagnetic interference, how far away should the cable be from fluorescent lighting?

at least 3 feet

The Data Link Layer utilizes what name for its protocol data unit (PDU)?

frame

What is NOT a TIA/EIA recognized cabling type that can be used for horizontal cabling? a. unshielded twisted pair (UTP) b. fiber-optic c. RG-6 Coaxial d. shielded twisted pair (STP)

c. RG-6 Coaxial

You are troubleshooting a DNS issue on a Linux system, and need to test the resolution of your domain mycompany.com MX record using Google's DNS server with the IP address of 8.8.8.8. What dig command will accomplish this?

dig @8.8.8.8 mycompany.com MX

What component of enterprise level structured cabling serves as the location where an incoming network interface enters a building and connects with the building's backbone cabling?

entrance facility

An open electrical circuit as a result of a failed circuit breaker is considered to be what type of failure system?

fail-close

A policy in which all exit doors for a building stay unlocked during a fire is an example of what type of policy?

fail-open

In a fire suppression system, what term is used to describe what is typically a foaming chemical, gas, or water that is sprayed everywhere to put out a fire?

fire suppression agent