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Dion Flashcards

1
Q

Internal network users aren’t able to access external site but external users can. Website responds to ping from internal network + resolves to proper public address. What is the fix while causing internal users to route to website using internal IP address?

A

Implement split-horizon / split-view DNS

Separate DNS servers provided for security + privacy management for internal + external networks

Logical / physical separation of DNS information

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2
Q

UPS malfunctioning because internal battery has died. To replace the server has to be shut down while UPS is replaced. What would BEST increase server’s availability over UPS replacement?

A

Add redundant power supply to server

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3
Q

Maximum amount of data, as measured in time, that an organization is willing to lose during an outage

A

RPO

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4
Q

Network device used to separate broadcast domains

A

Router (Layer 3 switch)

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5
Q

Theoretical maximum rate of data transfer from source to destination in a given amount of time under ideal conditions

A

Bandwidth

Throughput is actual measure

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6
Q

Used by agent to send complete set of key-pair values about a significant event / condition that is occurring in real-time by providing full list of variables + values for a given device to a manager

A

Verbose trap

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7
Q

Implement to require the least amount of configuration for Internet access over guest network

A

Enable SSID broadcast for guest wireless network

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8
Q

Administrator can ping fiber uplink interface but none of the workstations plugged into switch are responding to ICMP requests. What should be done next?

A

Determine if link lights are lit for the ports

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9
Q

Remediation strategies MOST effective in reducing risk to an embedded ICS from network-based compromise

A

Segmentation

Disabling unused services

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10
Q

Best solution to sanitize / destroy data while ensuring computers will still be usable

A

Wiping (overwriting data on disk)

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11
Q

Tool to measure resistance of coaxial cable

A

Multimeter

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12
Q

Most likely reason SSID is not being displayed

A

Broadcast is disabled on wireless router

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13
Q

Encryption type used by WPA to improve upon WEP

A

TKIP

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14
Q

SDN layer that focuses on resource requests or information about the network

A

Application layer

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15
Q

Method to protect DMZ from ping sweeps trying to discover network resources

A

Block all ICMP traffic to + from DMZ

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16
Q

What to implement to correct issue if network equipment has been restarting at the same time every day

A

UPS

Simultaneous restart likely due to power outage

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17
Q

BEST recommendation to add to BCP

A

Build redundant links between core devices

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18
Q

Keep cabling infrastructure out of sight but still accessible to administrators (cost not an issue)

A

Install raised floor for cabling

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19
Q

Condition that occurs when copper conductors on several wires being exposed + coming in contact with each other

A

Short

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20
Q

What happens when convergence on a routed network occurs?

A

All routers learn the route to all connected networks

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21
Q

Protocol to be familiar with to troubleshoot router using label switching and label edge routers to forward traffic

A

MPLS

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22
Q

Metric that would be most useful to determine why VoIP service is not presenting consistent pace when traversing network

A

Jitter

Big problem with real-time applications

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23
Q

Antenna type with low profile

A

Patch antenna

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24
Q

Uses well-written set of carefully developed + tested scripts to orchestrate runbooks + generate consistent server builds across an enterprise

25
Open-source remote access tools that allows users to connect to their desktop remotely, see what is on their screen + control is with their mouse + keyboard
Virtual network computing (VNC)
26
Configure routers to advertise failed routes with addition of infinite metric to prevent routing loops
Route poisoning
27
Telecommunication link used to provide high-speed internet over system of coaxial / HFC cables
DOCSIS (Cable)
28
IEEE specification that describes the use of LACP
802.3ad
29
Technologies used by captive portal to perform user redirection
HTTP redirect ICMP redirect DNS redirect
30
Needs to be added to allow network management tool to interpret new device + control it using SNMP
MIB
31
Type of network attack in which attacker is blocking cellular devices from connecting to Internet within a building but device connects again after moving a distance from the building
Frequency jamming
32
On-path attack in which attacker redirects any layer 2 traffic destined for gateway to attacker's computer first
ARP poisoning
33
Device that can prevent network traffic with non-default port numbers from bypassing security policies
Application-aware firewall
34
Network documentation that would include labels to indicate which cables are connected to which switchports on an edge switch
Wiring diagram
35
Not useful against zero-day threat
Patching
36
Command to determine if interface is currently connected using OSPF / EIGRP on network device
show route
37
Helps identify switches connected to each port quickly
Enable discovery protocol on network devices
38
Command to display statistics for given switchport on Cisco switch
show interface
39
Device connected to switch unable to obtain IP address but link light shows healthy connection
DHCP scope exhausted DHCP not correctly configured
40
Capability to monitor all traffic entering + leaving network default gateway in addition to blocking certain content types before it leaves network based on operational priorities
Install NIPs on internal router interface Install firewall on external router
41
Protocol to establish secure + encrypted VPN tunnel initiated through web browser
TLS/SSL
42
Used to allow 1 node to communicate with many other nodes (DMVPN connections)
mGRE
43
Technologies for internet connection when TV is already installed
DOCSIS modem
44
Test open-source VoIP system before investing in associated hardware + phones
Create virtual PFX Connect it to SIP phone application
45
SDN layer that determines how to route data packet
Control layer
46
User ran bandwidth speed test from laptop + received 33.3 Mbps upload + 10.2 Mbps download. BEST interpretation of results
Laptop received data at 33.3 Mbps + sent data at 10.2 Mbps
47
Tool to use to measure signal power as it transmits over fiber optic cable
Fiber light meter
48
Quickest option to configure replacement device with secure configuration
Image
49
Type of attack in which attacker configures their machine to report itself as switch when connected to wired network.
VLAN hopping
50
Wireless technology to use to transmit data files from 1 system to another in direct P2P connection over 2 - 3 meters
Bluetooth (up to 10 m) NFC (4 cm / less)
51
Switchport state with LEAST desirable path placed by STP when switch has multiple paths to reach root bridge
Blocking Indicates there is a better path to root bridge + switchport itself is not root / designated port
52
Deep packet firewall dropping portions of packet flow as it enters / leaves network. Network configured to use HSRP to load balance network traffic. What causes firewall to drop packets?
Asymmetric routing Network packets leave via 1 path + return via different path
53
Cellular technology comprised of HSPA+ & EV-DO to provide higher data speeds than previous cellular data protocols
3G
54
Routing prefixes assigned in blocks by IANA + distributed by RIR
Autonomous system number
55
Issue that can be prevented by configuring split-horizon options on network devices
Routing loops
56
48-port switch just rebooted + all clients are not attempting to obtain new DHCP address. What may begin to occur?
Broadcast storm All 48 clients trying to receive DHCP assignment simultaneously
57
Configured a new interface on a router but client workstations don't receive addressing information from new interface. What needs added / changed to resolve issue?
IP helper Enables single DHCP server to provide IP addresses regardless of broadcast domains
58
Simple solution for adding a shared drive that easily integrates into existing network, easy to configure, share files with clients over TCP/IP
NAS
59
Command to check if DHCP snooping has been configured on network interface
show config

Network+ (13 decks)

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