Session 4 Flashcards
Which is NOT true about a load balancer?
Choices:
A - Load balancing can work over multiple NICs
B - Load balancers control traffic over multiple routers
C - Load balancers distribute requests across servers in a server farm
D - If a server that is part of a load balance is removed from the group, the load balancer fails
D - If a server that is part of a load balance is removed from the group, the load balancer fails
What is the act of throttling bandwidth on the basis of applications known as?
Choices:
A - Traffic control
B - Packet shaping
C - Content filtering
D - Traffic classification
B - Packet shaping
A junior network administrator needs a definition for a critical node. What would the best definition be?
Choices:
A - A device with no mirroring
B - A device with no redundancy
C - A file that will cause a loss of business function if it is lost
D - A device that will cause a loss of business function if it fails
D - A device that will cause a loss of business function if it fails
What is data that must be protected in case of disaster known as?
Choices:
A - Critical node
B - Critical asset
C - Critical data set
D - Critical software
B - Critical asset
A tech support firm agrees to make sure their cloud services are up and running 99.999% of the time. What is this type of agreement known as?
Choices:
A - SLA
B - MLA
C - MOU
D - SOW
A - SLA
Two manufacturers make an agreement to build the same type of external hard drives. This agreement represents which type of business document?
Choices:
A - SLA
B - MSA
C - MOU
D - SOW
B - MSA
Which business document type is often legally equivalent to a contract?
Choices:
A - SLA
B - MSA
C - MOU
D - SOW
D - SOW
A technician is in a small office, trying to figure out how to remove a cable running all the way across a room, connecting a computer with no wireless adapter to a wireless router. What device can the technician add to the network to then be able to remove the cable?
Choices:
A - A hub
B - A repeater
C - A wireless bridge
D - A wireless adapter
C - A wireless bridge
A technician needs to measure device density in a wireless network in an industrial building. What is the technician specifically checking for?
Choices:
A - The number of devices within the building
B - The number of access points within the building
C - The number of users accessing the wireless access point
D - The number of machines that interfere with the wireless access points
A - The number of devices within the building
Which wireless concept involves getting multiple interfaces to be set up as a single entity?
Choices:
A - LWAPP
B - VLAN pooling
C - Wireless bridges
D - Wireless controllers
B - VLAN pooling
What is a protocol wireless LAN controllers use to manage multiple access points in a wireless network?
Choices:
A - SMB
B - LDAP
C - SNMP
D - LWAPP
D - LWAPP
Which wireless standards run on the 2.4 GHz frequency? Choose three.
Choices:
A - 802.11b
B - 802.11g
C - 802.11n
D - 802.11ac
A - 802.11b
B - 802.11g
C - 802.11n
Which wireless standards operate on the 5 GHz frequency? Choose two.
Choices:
A - 802.11b
B - 802.11g
C - 802.11n
D - 802.11ac
C - 802.11n
D - 802.11ac
An 802.11n wireless network has a speed standard of 600 Mbps. The actual average speed has been consistently measuring at 300 Mbps. What is this known as?
Choices:
A - Goodput
B - Throughput
C - Interference
D - Bad antenna signal
A - Goodput
What does the ht stand for in the 802.11a-ht networks?
Choices:
A - High transit
B - High transfer
C - Higher throughput
D - Higher technology
C - Higher throughput
What determines an antenna’s signal strength in a wireless network?
Choices:
A - The gain value
B - The type of standard it is on
C - The resistance to interference
D - The distance the signal can travel
A - The gain value
A network administrator needs to purchase a wireless antenna that beams a signal in all directions. Which type of antenna does the administrator need to purchase?
Choices:
A - Alldirectional
B - Unidirectional
C - Multidirectional
D - Omnidirectional
D - Omnidirectional
Which wireless standard supports MU-MIMO?
Choices:
A - 802.11b
B - 802.11g
C - 802.11n
D - 802.11ac
D - 802.11ac
Which is the most likely factor that contributes to a weak signal strength for a client?
Choices:
A - Distance from the access point
B - Client is on a different channel than the access point
C - Client is on a different frequency than the access point
D - Client is on a different wireless standard than the access point
A - Distance from the access point
Which is considered the best way to secure a wireless network?
Choices:
A - Use MAC filtering
B - Use WPA2 encryption
C - Lower the signal strength
D - Disable the SSID broadcast
D - Disable the SSID broadcast
Which type of wireless network involves a direct connection between two devices?
Choices:
A - Mesh
B - Ad hoc
C - Infrastructure
D - Unidirectional
B - Ad hoc
Which type of wireless network uses access points to connect devices to a wired network?
Choices:
A - Mesh
B - Ad hoc
C - Infrastructure
D - Unidirectional
C - Infrastructure
What network policy should be implemented before personal cell phones are allowed on a corporate network?
Choices:
A - MAM
B - MDM
C - BYOD
D - MSDS
C - BYOD
A junior technician is saying that Android tablets all have different locations for wireless settings and connections. This is due to the Android operating system being what type of operating system?
Choices:
A - Thin
B - Open
C - Thick
D - Closed
B - Open
A home office needs its gaming device connected to a wireless network as the owner wants to be able to use the fitness app on the gaming device. What information is needed in order to connect this device to the wireless network? Choose two.
Choices:
A - SSID
B - Password
C - IP address of device
D - IP address of access point
A - SSID
B - Password
Which is considered the weakest when it comes to security for wireless authentication?
Choices:
A - TKIP
B - WEP
C - WPA
D - WPA2
B - WEP
Which type of wireless authentication needs an authentication server in order to connect to a network?
Choices:
A - WPA
B - WEP-Shared
C - WPA2-Personal
D - WPA2-Enterprise
D - WPA2-Enterprise
Which is true about encryption protocols used in WPA and WPA2?
Choices:
A - Both WPA and WPA2 use AES
B - Both WPA and WPA2 use TKIP
C - WPA uses AES while WPA2 uses TKIP
D - WPA uses TKIP while WPA2 uses AES
D - WPA uses TKIP while WPA2 uses AES
What are the main components of 802.1X? Choose three.
Choices:
A - Supplicant
B - Authenticator
C - Authorization agent
D - Authentication server
A - Supplicant
B - Authenticator
D - Authentication server
A user wants to make sure his/her wireless hotspot only allows devices the user chooses. What is the best way to accomplish this?
Choices:
A - Use IP filtering
B - Use MAC filtering
C - Use WPA2 encryption
D - Enable the SSID broadcast
B - Use MAC filtering
What is true about circuit switching and packet switching?
Choices:
A - Circuit switching uses virtual circuits while packet switching packets all take the same path to their destination
B - Circuit switching uses virtual circuits while packet switching packets can take different paths to their destination
C - Circuit switching uses a dedicated transmission channel while packet switching packets all take the same path to their destination
D - Circuit switching uses a dedicated transmission channel while packet switching packets can take different paths to their destination
D - Circuit switching uses a dedicated transmission channel while packet switching packets can take different paths to their destination
What type of multiplexing uses up to 32 wavelengths on a single fiber?
Choices:
A - PON
B - SONET
C - CWDM
D - DWDM
D - DWDM
Which WAN technology is usually associated with cable television networks?
Choices:
A - ATM
B - CWDM
C - DWDM
D - Frame relay
B - CWDM
A telecommunications provider is bringing an OC12 network to a building. How much maximum speed can a business that signs up for this service expect?
Choices:
A - 1.244 Gbps
B - 51.84 Mbps
C - 155.52 Mbps
D - 622.08 Mbps
D - 622.08 Mbps
Which fiber-optic connector uses a bayonet type of lock?
Choices:
A - LC
B - FC
C - SC
D - ST
D - ST
What does an LC connector resemble?
Choices:
A - A USB connector
B - An RJ-45 connector
C - A coaxial connector
D - An audio/video connector
B - An RJ-45 connector
Which fiber-optic connector commonly connects two fibers?
Choices:
A - LC
B - FC
C - SC
D - MT-RJ
D - MT-RJ
Which tool is used in a situation where there is a single input fiber and multiple output fibers?
Choices:
A - FC
B - APC
C - UPC
D - Coupler
D - Coupler
Typically, single-mode fiber-optic cables will have which advantages over multimode fiber-optic cables? Choose three.
Choices:
A - Speed
B - Distance
C - Attenuation
D - Signal strength
A - Speed
B - Distance
D - Signal strength
What is true about UPC and APC in fiber-optic cables?
Choices:
A - Both are flat
B - Both are angled
C - UPC is flat and APC is angled
D - UPC is angled and APC is flat
C - UPC is flat and APC is angled
A company’s Internet provider has changed networks to a fiber-optic network. The company uses a twisted-pair network. Which device will the company need so that its internal network can connect to the Internet provider’s new network?
Choices:
A - Hub
B - Switch
C - Router
D - Media converter
D - Media converter
A common problem a satellite Internet connection has is the time it takes for a signal to travel back and forth from the satellite. What is this known as?
Choices:
A - Noise
B - Delay
C - Latency
D - Overflow
C - Latency
Which type(s) of switching do ATM networks use? Choices:
A - Circuit
B - Packet
C - Connection
D - Circuit or packet
C - Connection
Which WAN technology uses short path labels rather than long network addresses to direct data from node to node?
Choices:
A - ATM
B - ISDN
C - MPLS
D - Frame Relay
C - MPLS
Which is true about virtual switches?
Choices:
A - They control traffic between VLANs
B - They can only create private networks between virtual machines
C - They can only allow virtual machines to network with a host machine
D - They support networks that support virtual machines interacting with each other and a public
D - They support networks that support virtual machines interacting with each other and a public
What is the main purpose of a virtual firewall?
Choices:
A - Control access to the virtual network
B - Control websites people in a virtual machine can see
C - Control packets through packet filtering and monitoring
D - Control QoS between a virtual network and a host machine
C - Control packets through packet filtering and monitoring
What is a concern of virtual NICs that rarely, if ever, exists with physical NICs?
Choices:
A - Setting IP addresses
B - Duplicate IP addresses
C - Duplicate MAC addresses
D - Incompatible duplex speeds
C - Duplicate MAC addresses
Which storage area network type uses LUNs?
Choices:
A - NAS
B - iSCSI
C - Jumbo frame
D - Fibre Channel
B - iSCSI
What is the biggest benefit with using jumbo frames for Ethernet?
Choices:
A - Faster data transfer
B - Fewer packets and thus more speed
C - Fewer packets and thus less overhead
D - Less chance for error with a larger frame
C - Fewer packets and thus less overhead
What would lean a network administrator toward a NAS rather than a SAN?
Choices:
A - Cost
B - Speed
C - Storage
D - Routing
A - Cost
A small company uses drive services with their free webmail to share to clients. The drives can be shared to anyone. What is this an example of?
Choices:
A - Public IaaS
B - Public PaaS
C - Hybrid IaaS
D - Hybrid PaaS
B - Public PaaS
A financial company is developing an application using a public cloud but will share the data with an application it has in its private cloud. What is this an example of?
Choices:
A - Hybrid IaaS
B - Hybrid PaaS
C - Community IaaS
D - Community PaaS
B - Hybrid PaaS
A group of non-profit organizations share users and storage in a collaborative application. What is this an example of?
Choices:
A - Hybrid IaaS
B - Hybrid PaaS
C - Community IaaS
D - Community PaaS
C - Community IaaS
What type of control system has a hierarchy of controllers connected through communication networks?
Choices:
A - ICS
B - PLC
C - DCS
D - SCADA
C - DCS
An administrator for an industrial network needs to add a device that will transmit data from a master supervisory system to objects connected to the network. Which device will the administrator need?
Choices:
A - ICS
B - PLC
C - DCS
D - Remote Terminal Unit
D - Remote Terminal Unit
Which network system operates with many of its devices remotely controlling equipment?
Choices:
A - VLAN
B - SCADA
C - Honeypot
D - Honeynet
B - SCADA
If a network includes video teleconferencing as a type of data, what type of network architecture can help the video teleconferencing coexist well with other data types?
Choices:
A - IP
B - SIP
C - VTC
D - Medianet
D - Medianet
Which protocol is often used with VTC over IP networks?
Choices:
A - SIP
B - TCP
C - UDP
D - ISDN
A - SIP
Which is considered the best protocol for streaming video?
Choices:
A - IP
B - TCP
C - UDP
D - VoIP
C - UDP
A user notices a unicast and a multicast option for a software pushing application. The user wants to know the difference between the two. How should this be
explained?
Choices:
A - A unicast broadcasts in one direction while a multicast broadcasts in both directions
B - A unicast is a one-to-one connection for messages while a multicast is a one-to-all connection for messages
C - A unicast is a one-to-one connection for messages while a multicast is a one-to-many connection for messages
D - A unicast is a one-to-one connection for messages while a multicast is a many-to-man connection for messages
C - A unicast is a one-to-one connection for messages while a multicast is a one-to-many connection for messages
Which component of QoS classifies and manages network traffic?
Choices:
A - UC
B - COS
C - VoIP
D - DSCP
D - DSCP
What methods can be used to defend a network against packet analyzers? Choose two.
Choices:
A - Encrypt sensitive data
B - Use a switched network
C - Add routers to the network
D - Move sensitive data to a private network
A - Encrypt sensitive data
B - Use a switched network
Which type of tool is best suited to monitor networks for utilization problems and packet drops?
Choices:
A - Port scanner
B - Packet sniffer
C - Protocol analyzer
D - Interface monitoring
D - Interface monitoring
A junior administrator generates a report of the top talkers in a network. What will the report contain?
Choices:
A - Users who transmit the most data
B - Routers that transmit the most data
C - Devices that transmit the most data
D - Switches that transmit the most data
A - Users who transmit the most data
Baselines in Network Performance
What is the main purpose of baselines in network performance?
Choices:
A - To show how the network is performing
B - To show how the network should perform
C - To gain a comparison point on performance
D - To show network performance statistics before an upgrade is done
C - To gain a comparison point on performance
Which method of tracking network performance typically provides the most visual-looking reports?
Choices:
A - Alerts
B - Log files
C - Graphing
D - Raw data
C - Graphing
What are users who use the most bandwidth each month to receive data known as?
Choices:
A - Top receivers
B - Top listeners
C - Bandwidth hogs
D - Top participants
B - Top listeners
Which command-line tool is used to see which TCP ports on a system are either in use or waiting to be used?
Choices:
A - netstat -a
B - netstat -a TCP
C - netstat -p TCP
D - netstat -a -p TCP
D - netstat -a -p TCP
What is the process by which an SNMP manager retrieves information from an SNMP-managed device known as?
Choices:
A - Set
B - Get
C - Trap
D - Walk
B - Get
Which command represents multiple gets for reading information from multiple devices?
Choices:
A - Set
B - Trap
C - MIBS
D - Walk
D - Walk
Which is the setting that limits the disk space a user may use on a network drive?
Choices:
A - Rights
B - Quotas
C - Throttling
D - Permissions
B - Quotas
What is the best way to optimize servers regarding RAM?
Choices:
A - Redundancy
B - Load balancing
C - High availability
D - Resource monitoring
B - Load balancing
Which type of alert is well-suited for non-urgent issues discovered when monitoring networks?
Choices:
A - Cell
B - SMS
C - Pager
D - Email
D - Email
A junior administrator is tasked to set up packet flow monitoring. The junior administrator needs to know what type of tool should be used for this job. What type of tool should the junior administrator use?
Choices:
A - Line tester
B - Packet sniffer
C - Throughput tester
D - Protocol analyzer
B - Packet sniffer
Generally, a SYSLOG error level of 0 in a UNIX/Linux environment means what type of severity?
Choices:
A - Alert
B - Error
C - Emergency
D - Informational
C - Emergency
What is one potential problem with logging all application events verbosely?
Choices:
A - Hard disk space limitations
B - Log files are hard to analyze
C - Application performance slows
D - Large number of log files are generated
A - Hard disk space limitations
Which temperatures are considered to be too high for a server room? Choose two.
Choices:
A - 65
B - 70
C - 75
D - 80
C - 75
D - 80
What type of tools monitor systems in SCADA networks to make sure all of the remote-control devices have the proper voltage to perform their tasks?
Choices:
A - ICS monitoring tools
B - PLC monitoring tools
C - Power monitoring tools
D - Voltage monitoring tools
C - Power monitoring tools
What do wireless survey tools generate to show quality of wireless network coverage?
Choices:
A - SSIDs
B - Heat map
C - Security settings
D - Rogue access points
B - Heat map
What is the purpose of a link status?
Choices:
A - To make sure links are working
B - To make sure connections are working
C - To make sure the light on a router is on
D - To make sure the light on a NIC is green
B - To make sure connections are working
Which type of tool is best used for monitoring ports on routers and switches?
Choices:
A - Port monitoring tool
B - Packet monitoring tool
C - Network monitoring tool
D - Interface monitoring tool
D - Interface monitoring tool
Which is the most common cause of packet discards on a switch or router, given that there are no major problems with the switch or router?
Choices:
A - QoS
B - Collision
C - Incorrect headers
D - Overloaded queue
D - Overloaded queue
A network administrator needs to determine where packets are dropping as they are going from the administrator’s office to a vendor. Which command-line tool should the administrator run to obtain this information?
Choices:
A - ping
B - route
C - tracert
D - pathping
D - pathping
When looking at a network performance report, a network administrator notices a NIC is only transmitting data in one direction at a time. What setting is most likely on that NIC?
Choices:
A - Full-duplex
B - Half-duplex
C - Multi-duplex
D - Double-duplex
B - Half-duplex
