Network Topologies, Protocols, and Configuration Part 1

An engineer for a large firm documents the internal computer network. A diagram the engineer creates shows a top-down view of the Ethernet infrastructure in a hub and spoke layout. While considering the physical and logical topologies of the network, determine which choices qualify. (Select all that apply.)

a) LAN
b) Bus
c) Ring
d) Star

An engineer begins the installation of a network for a new business. Ethernet cables run from desktop locations to a centralized patch panel in a data closet where a hub is placed until a new switch arrives. Evaluate the engineer's configuration, and conclude which types of physical and logical topologies the engineer implements. (Select all that apply.)

a) Star
b) Ring
c) LAN
d) Bus

A network administrator is creating a plan for connecting multiple branch locations to the main database located in the headquarters. Which protocols can the administrator use to accomplish this link? (Select all that apply.)

a) MPLS
b) vNIC
c) mGRE
d) NFV

A wireless access point is available on the floor for wireless users in the area. User 1 wants to send a file to user 2 using their laptop's wireless adapters. Which of the following is the most secure way of sending files to one another using their current wireless adapters?

a) Using an infrastructure connection
b) Using an ad hoc connection
c) Using a wireless mesh network
d) Using a bus network connection

A server administrator is adding a new Network Interface Card (NIC) to a virtual machine. What should the administrator modify to add the new NIC to the virtual machine?

a) Hypervisor
b) WAN
c) SD-WAN
d) Demarcation point

An organization has asked a network engineer to suggest a type of connection the new office space will require. The chief executive officer (CEO) tells the engineer the organization wants a dedicated T1 line not slowed down by other businesses or Internet Service Provider (ISP) customers. What type of connection has the CEO described to the engineer?


a) Satellite
b) Demarcation point
c) Digital subscriber line (DSL)
d) Leased line

A server technician is shopping for new storage for data on the business network. The storage requirement has risen over the last year, and the servers currently have limited space. What is an option for the technician to purchase to increase the available storage on the local network?

a) SDWAN
b) Client-server
c) SAN
d) VLAN

Which of the following topologies is a network of two or more nodes that shares access to the network, but only one node can be active at any one time?

a) Bus
b) Star
c) Ring
d) Mesh

A wireless access point is available on the floor for wireless users in the area. User 1 wants to send a file to user 2 using their laptop's wireless adapters. Which of the following is the most secure way of sending files to one another using their current wireless adapters?


a) Using an ad hoc connection
b) Using a wireless mesh network
c) Using an infrastructure connection
d) Using a bus network connection

A tech configures a network to use an E-lines service. Compare and evaluate the choices to determine which network type the tech configures.


a) MAN
b) PAN
c) CAN
d) WAN

A college is upgrading their high-speed network infrastructure to support direct-connect Internet in all student buildings and dormitories. The network will connect to high-performing school servers that will provide computer lab environments for classes. What type of network is the school continuing to maintain?

a) WLAN
b) PAN
c) WAN
d) CAN

An engineer troubleshoots a network connectivity issue that the server team reported. The engineer notices that the trunk port is down between two routers. After checking the fiber link on the router, the engineer moves the cable and notices that the link light comes on. The issue is MOST likely a part of what layer of the OSI model?

a) Physical layer

b) Network layer

c) Session layer

d) Data link layer

Network layer

Data Link Layer

Session layer

An organization has asked a network administrator to research and submit a purchase order for new network access points. The network administrator is attempting to choose between using wired and wireless access points. Which layer of the OSI model is the administrator making a decision?

a) Physical layer
b) Network layer
c) Data link layer
d) Session layer

A network administrator is reviewing some packets flagged by the Intrusion Detection System (IDS). The administrator notices that the packets are ping packets, but the size of the packets is much larger than expected. What is the MOST likely cause of the oversized packets?

a) TCP flags
b) Corrupted MTU
c) Modified payload
d) False positive

A network administrator is looking at an ARP table on a switch for connected devices. Which Open Systems Interconnection (OSI) layer are they looking at?

a) Data link
b) Physical
c) Network
d) Session

An engineer is building a backbone network in a new facility. The cabling going from one side of the building to the other is about 500 feet and will support a 5Gbps link between two routers. Which type of cabling should the engineer use?

a) Coaxial/RG-6
b) 1000BASE-SX
c) 10GBASE-SR
d) 10GBASE-LR

An engineer creates several Ethernet cables and chooses to use the widely deployed pinout standard when terminating the cable ends. Considering the standard choices, which of the following does the engineer choose to implement?

a) RJ-11
b) TIA/EIA 568b
c) RJ-45
d) TIA/EIA 568a

A technician finishes running fiber optic cable across a large building to expand the internal network. The fiber connects to equipment in a rack with extremely limited space for a connector. Considering the situation and the types of available fiber connectors, which one will accomplish connectivity?

a) APC
b) SC
c) UPC
d) LC

subscriber connector (SC)

Angled Physical Contact (APC)

Ultra Physical Contact (UPC) Connector

A server administrator has asked a junior network engineer to build a link between the server and the new SAN that the administrator just installed. The speed requirements for the link are more than 20Gbps, and the distance is about 20 feet. What medium should the network engineer use to build the required link?

a) 1000BASE-T
b) 40BASE-T
c) 10GBASE-T
d) 10BASE-T

A technician finishes running fiber optic cable across a large building to expand the internal network. The fiber connects to equipment in a rack with extremely limited space for a connector. Considering the situation and the types of available fiber connectors, which one will accomplish connectivity?

a) UPC
b) LC
c) SC
d) APC

A technician is building a new network link between a switch and a router. The switch only has ethernet ports, while the router only has fiber ports. What could the technician utilize to connect these two devices?

a) Patch panel/patch bay
b) Fiber distribution panel
c) SFP+
d) Transceiver/media converter

An engineer has installed a new router but is not connected to the core network yet. What type of connector should the engineer install to get the requested throughput of 30Gbps or more?

a) Coarse wavelength division multiplexing (CWDM)
b) Enhanced quad small form-factor pluggable (QSFP+)
c) Enhanced form-factor pluggable (SFP+)
d) Dense wavelength division multiplexing (DWDM)

An engineer has a task to survey an old building and determine the current network infrastructure. Building owners state that some cabling is from a recent install. The engineer achieves a speed of 10 Gbps while testing the cable up to 100 meters and also determines the cable to be well shielded. Based on the engineer's findings, the cabling meets what specification?

a) Cat 5e
b) Cat 6
c) Cat 7
d) Cat 3

A network technician is installing a new ethernet receptacle using a punch tool. Which blade type can the technician utilize to terminate the wires onto the punch block?

a) 66
b) RJ-11
c) RJ-45
d) 110

A network engineer is troubleshooting an ethernet connection between two buildings. The engineer noticed that the network devices got upgraded, but the wiring did not. The engineer needs a connection that can handle 10Gbps at 500 MHz for a distance of 300 feet using RJ-45 connectors. What type of ethernet should the engineer replace the Cat 5 with to meet the connection standard?

a) Cat 6
b) Cat 6a
c) Cat 8
d) Cat 7

A network installer is building a long-distance link. The nodes are approximately 10 km apart. What type of fiber link should the installer build for this link?

a) 100BASE-FX
b) 1000BASE-LX
c) 10GBASE-SR
d) 100BASE-SX

A network installer is installing new phone lines into the network room. The installer has many blades for the punch down panels in the building and needs a blade that is customizable on one end. Which blade should the installer use that has a customizable blade on one end of the punch tool?

a) Krone
b) 110
c) 66
d) Bix

An IT engineer chooses to use a fiber cable implementation that uses light emitting diode (LED) technology rather than one that uses lasers. Considering the optic technology in use, what does the engineer implement?

a) Duplex
b) Single-mode
c) Multimode
d) Bidirectional

An organization has asked a junior network technician to retrieve some swappable ports that host a single LC connection per port. Since there are numerous inserts for network devices, which should the technician retrieve?

a) SFP
b) RJ-45
c) F-type connector
d) QSFP

An engineer is installing a new connection between two database stacks. The engineer is using copper cable and needs a connection speed of 40GbE with a distance of about 12 feet. Which medium should the engineer utilize for this link?

a) Coaxial
b) 10BASE-T
c) 10GBASE-LR
d) Twinaxial

All client machines configured for DHCP are up and running without issue. However, the clients not configured for IPv4 are not getting IP addresses. What should the server administrator configure so the IPv6 clients can receive automatic address configuration as well?

a) Dual stack
b) RFC1918
c) SLAAC
d) Router advertisement

The DHCP server is offline and the server team is working on re-building corrupted scope information. The team notices that some clients have not had any issues since the DHCP server went down. After investigating the operational client machines, the team notices that they are all running IPV6. How do IPv6 hosts gain addressing without manual configuration?

a) Router advertisement
b) RFC1918
c) SLAAC
d) Dual stack

A system sends a message to all link-local nodes via a multicast address. Compare private address types and conclude which address the system will use.

a) 192.152.160.120
b) ff02:1
c) 00:5a:3b:08:5c:02
d) ff:ff:ff:ff:ff:ff

What allows a network designer to allocate ranges of Internet Protocol (IP) addresses to subnets that match the predicted need for the number of subnets and hosts per subnet?

a) Classless Inter-Domain Routing (CIDR)
b) Public addressing
c) Private addressing
d) Variable Length Subnet Masks (VLSMs)

Select the Internet Protocol (IP) address that is in the Class B private address range.

a) 10.160.025.001
b) 127.050.137.081
c) 169.254.140.102
d) 172.20.105.003

A company has 725 hosts on the network that utilize public Internet Protocol (IP) addresses. The company has three contiguous class C addresses for the hosts. The company implemented Classless Inter-Domain Routing (CIDR) to assist with the maintenance of the three networks. What will CIDR provide to the network?

a) CIDR will allow a network designer to allocate ranges of IP addresses to subnets that match the predicted need for numbers of subnets and hosts.
b) CIDR will use bits normally assigned to the network ID to mask the complexity of the subnet and host address scheme.
c) CIDR will provide groups of address ranges reserved for special use and are not publicly routable.
d) CIDR will provide translation between the private and public addresses

A new network administrator is going through the company's network and surveying current network configurations. After examining a few hosts, the general Internet Protocol (IP) scheme starts with the first octet at 10 and all are using a default mask of 255.0.0.0. Which of the following would be true for this network? (Select all that apply.)

a) Private IP addressing
b) Public IP addressing
c) Class A network
d) /24

A small office is utilizing a total of 25 Internet Protocol (IP) addresses to support various workstations and printers. One of the workstations has an IP address of 192.168.10.50. Which of the following are true about this network's subnet? (Select all that apply.)

a) Broadcast address of 192.168.10.31
b) Subnet mask of 255.255.255.224
c) CIDR notation of /27
d) CIDR notation of /28

What is the Internet Protocol (IP) address of a router on the same IP network as the host?

a) Default gateway
b) Subnet mask
c) Loopback address
d) Virtual IP

A host with a Media Access Control (MAC) of 00:72:8b:31:8b:cb uses a global scope addressing scheme. Compose the MAC-derived address for the Extended Unique Identifier (EUI) 64.

a) 0272:8bff:ee31:8bcb
b) 0272:8bff:fe31:8bcb
c) 0072:8bff:ee31:8bcb
d) 0072:8bff:fe31:8bcb

A host with a Media Access Control (MAC) of 00:72:8b:31:8b:cb uses a global scope addressing scheme. One identifier for this host is 0272:8bff:fe31:8bcb. Consider Internet Protocol version 6 (IPv6) addressing schemes to determine what this identifier represents.

a) Extended Unique Identifier (EUI) 64
b) Subnet address
c) Global scope
d) Network ID

A network administrator is setting up a 192.168.1.0/24 network using variable length subnet masking (VLSM) to support the sales and marketing department. The sales department has 120 computers and the marketing department has 50 computers. Which of the following Internet Protocol (IP) address configurations will provide adequate support for the marketing department? (Select all that apply.)

a) 192.168.1.128/26
b) 255.255.255.224
c) 192.168.1.0/25
d) 255.255.255.192

A new physical web server receives power from and connects to the network in the communications closet. To ensure the server is ready to communicate with users in the various offices of the building, a network administrator verifies network service installation and that the server can communicate with a Layer 3 switch in the same closet. How may the network administrator carry out these tests? (Select all that apply.)

a) Pink the virtual IP
b) Ping the loopback
c) Ping the Default Gateway
d) Pink the subnet mask

A user goes to the website www.shopping.com. A bastion host reviews the request to enter the site to verify the safety of the request. What has the company established to enable clients access to data on the private system without compromising the security of the internal network?

a) Port Address Translation (PAT)
b) Demilitarized Zone (DMZ)
c) Port forwarding
d) Network Address Translation (NAT)

Which port will a Domain Name Server (DNS) use for record transfers over 512 bytes?

a) User Datagram Protocol (UDP) port 53
b) Transmission Control Protocol (TCP) port 53
c) Transmission Control Protocol (TCP) port 23
d) User Datagram Protocol (UDP) 69

Explain how the Simple Authentication and Security Layer (SASL) provides binding in Lightweight Directory Access Protocol Secure (LDAPS).

a) The client supplies the Domain Name (DN) and password.
b) The directory grants anonymous access.
c) The client and server negotiate the use of a supported security mechanism.
d) The server authenticates to the client and configures a secure channel for communications.

A Simple Network Management Protocol (SNMP) agent informs the monitor of a port failure. Analyze the functions of an SNMP agent to determine what command the monitor uses for this notification.

a) Set
b) Get
c) Walk
d) Trap

A network engineer is troubleshooting interconnectivity between IPv4 hosts and IPv6 hosts. The engineer has found there is a need for a layer three tunneling protocol that can encapsulate different types of IPv6 and IPv4 packets. What type of encapsulation should the engineer enable on the network?

a) GRE
b) LDAP
c) SQL Server
d) ICMP

What provides additional options, rather than only leases, for host Internet Protocol (IP) addresses?

a) EUI64
b) ESP
c) APIPA
d) DHCPv6

Which protocol uses Network Level Authentication (NLA) which requires the client to authenticate before a full remote session starts?

a) Remote Desktop Protocol (RDP)
b) Secure Shell (SSH)
c) Virtual Network Computing (VNC)
e) Telnet

A system administrator for ABC Company receives a request for a new account. A new employee is onboarding and will receive a Voice over Internet Protocol (VoIP) phone. The employee's name is Sam Smith and the phone number will be 1234567890. The company's domain is @abccompany.com. Develop a Session Initiation Protocol (SIP) Uniform Resource Indicator (URI). (Select all that apply.)

a) sip:sam.smith@1234567890

b) sip:sam.smith.abccompany.com

c) sip:sam.smith@abccompany.com

d) sip:123456789.abccompany.com

A network administrator is monitoring network traffic and notices a severe spike on port 993. Which protocol is causing the spike in network traffic?

a) IMAP
b) SMTP
c) POP3 over SSL
d) IMAP over SSL

A router downloads configuration files over User Datagram Protocol (UDP) port 69. The router does not have access to browse the directory or to delete files. Analyze File Transfer Protocols (FTPs) and determine what protocol the router is using.

a) Trivial File Transfer Protocol (TFTP)
b) File Transfer Protocol over Secure Sockets Layer (SSL)
c) Secure File Transfer Protocol (SFTP)
d) Active File Transfer Protocol (FTP)

Which protocol allows for a protected dialog between the client and server by assigning the web server a digital certificate issued by a Certificate Authority?

a) Hypertext Transfer Protocol (HTTP)
b) Hypertext Transfer Protocol Secure (HTTPS)
c) Network Time Protocol (NTP)
d) Secure Sockets Layer/Transport Layer Security (SSL/TLS)

Which delivery method and protocol may send data out of order and over different paths? (Select all that apply.)

a) Connectionless
b) Connection-oriented
c) TCP
d) UDP

After plugging a cable into a computer, a user reports there is no network access. Which of the following tools would the technician most likely check to verify that the cable was crimped correctly?

a) Punch down tool
b) Toner probe
c) Loopback plug
d) Cable certifier

A physical server has been plugged in, powered on, and networked into the communication closet. Using a KVM (key, video, mouse) device, the network technician notices there is no network connectivity. Examining the back of the server, the LED status indicators for the port are off. After identifying the issue, which course of action should take place next?

a) Step 1. Establish a plan Step 2. Implement a solution Step 3. Verify network connectivity
b) Step 1. Test the theory Step 2. Implement a solution Step 3. Document the outcome
c) Step 1. Verify system functionality Step 2. Implement a solution Step 3. Document the outcome
d) Step 1. Document findings Step 2. Establish a plan Step 3. Implement a solution

A network engineer troubleshoots an issue where clients are not receiving IP addresses from a new, properly configured DHCP server on another subnet. Statically addressed clients can get onto the same network with no issues. Which of the following is causing the issue?

a) Improper routing protocols
b) Incorrect VLAN tagging
c) Missing helper addresses
d) Wrong default gateway

In the situation where default gateway is configured incorrectly, what happens to the PC?

A technician tries to duplicate a reported problem on a user's computer. Which of the following troubleshooting steps is the technician's focus?

a) Developing a theory
b) Problem identification
c) Considering related issues
d) Divide and conquering

A manager has reported a network outage at a remote branch office. After gathering some information and asking the manager and local IT personnel about the issue, a theory of probable cause cannot be established. Consider and determine what else the network support personnel can do to eventually resolve the issue? (Select all that apply.)

a) Verify full system functionality.
b) Look at system logs
c) Separate multiple issues
d) Verify LED status indicators.

A technician tries the suggested troubleshooting steps to remedy a computer issue. The steps do not fix the problem. Additional suggestions are at a support website that discuss a different cause and potential fix for the problem. What troubleshooting path should the technician follow?

a) If the theory is not confirmed, reestablish a new theory or escalate.
b) Document findings, actions, and outcomes.
c) Duplicate the problem, if possible.
d) Establish a plan of action to resolve the problem and identify potential effects.

A user calls to report that email is not working and that there is a printer jam. Which troubleshooting approach is best?

a) Establish a theory of probable cause.

b) Divide and conquer.

c) Implement the solution or escalate as necessary.

d) Approach multiple problems individually.

When considering a troubleshooting methodology, which of the following topics concern finding a problem? (Select all that apply.)

a) Duplicate the problem, if possible
b) Question the obvious
c) Identify symptoms
d) Gather information

In the OSI model, physical addressing takes place at which layer?

a) Physical layer
b) Data link layer
c) Application layer
d) Session layer

An administrator has just finished installing a new switch and connected two servers with IPs of 192.168.105.20 and .30. The servers can communicate with each other but are unable to reach the Internet. What information does the admin see in the switch configuration?

a) The admin used a crossover cable to connect the switch to the gateway
b) The server is missing default-gateway information
c) A routing loop has occurred
d) The subnet mask is incorrect

A newly deployed stack with servers, network switches, a KVM (Key, Video, Mouse), storage unit, and uninterruptible power supplies has just been fully cabled. After powering on the stack, there seems to be a network connectivity issue between the switch and servers. What is the best approach when trying to resolve this type of network issue?

a) Plan of action
b) Top-to-bottom
c) Bottom-to-top
d) Divide and conquer

A system that contains custom applications routinely crashes. IT decides to upgrade the operating system after speaking with application support personnel. In which of the following ways should IT troubleshoot the matter?

a) Establish a plan of action to resolve the problem and identify potential effects.
b) Identify the problem.
c) Determine if anything has changed.
d) Verify full system functionality and, if applicable, implement preventive measures.

A user took a laptop on vacation and made changes to the configuration in order to use the device at the hotel. The user can reach the Internet, but cannot access any internal network resources. Which of the following is the most likely reason?

a) Incorrect SSID
b) Incorrect DNS
c) Incorrect subnet mask
d) Duplicate IP address

Which of the following would a technician find in a network map?

a) Firewall rules
b) QoS standards
c) MDF/IDFs
d) System logs

The admin can ping the router at 192.168.105.1 from the switch. Which of the following is the most likely cause of the problem? (Select all that apply.)

a) Determine the next steps to resolve the problem
b) Confirm the theory
c) Implement preventive measures.
d) Verify full system functionality.

A technician determines that a faulty network connection caused a system error. Which logical approach allows for methodical steps to diagnosing the cause?

a) OSI (Open Systems Interconnection) reference model guidance
b) Identifying the problem
c) Escalating as necessary
d) Gathering information

A cable installer configures the insulation-displacement connection (IDC) terminals on a patch panel; what tool will the installer need for the cabling?

a) Punchdown tool
b) Snips
c) Cable stripper
d) Cable crimper

A server has stopped communicating on the network, and the administrator suspects the network interface card (NIC) or the switch port may be bad. What tools can the administrator use to verify? (Select all that apply.)

a) LED status indicators
b) Optical spectrum analyzer
c) TAP
d) Loopback adapter