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Test your basic knowledge |
CISSP Telecom And Network Security
Start Test
Study First
Subjects
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certifications
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it-skills
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cissp
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.
ICMP (Internet Control Message Protocol)
Layer 2 Tunneling Protocol (L2TP)
Digital Subscriber Line (DSL)
Session Initiation Protocol (SIP)
2. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Port Numbers
Reverse Address Resolution Protocol (RARP )
Blue Boxing
Password Authentication Protocol (PAP)
3. Type of switch that uses tags that are assigned to each destination network. The network compares the tag with its tag information base - appends the appropriate tag - and forwards to the next switch. This increases the transmission speed - allows la
Source Routing
OSI Layer 1: Physical
Multi-protocol Label Switching
Coaxial Cables
4. Wireless communication that applies sub-bits to a message (chips) and the receiver uses the chips to re-assemble the message based on the chipping code. It uses all available bandwidth - high throughput of 11Mbps.
SOCKS Firewall
Direct Sequence Spread Spectrum (DSSS)
Circuit Level Proxy Firewall
802.11b
5. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Noise
Challenge Handshake Authentication Protocol (CHAP)
Repeaters
6. Protocol that increases address size from 32 bits to 128 bits
LLC (Logical Link Control - 802.2)
IPv6
Star Topology
Plenum-rated Cables
7. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).
Frame Relay
Twisted Pair Cables
Repeaters
Fiber Distributed Data Interface (FDDI)
8. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Session Initiation Protocol (SIP)
10baseT
Spam over Internet Telephony (SPIT)
Synchronous Data Link Control (SDLC)
9. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp
Synchronous Data Link Control (SDLC)
Multistation Access Unit (MAU)
Proxy Firewall Strengths
Classless inter-domain routing (CIDR)
10. Type of network device that divides networks into more controllable segments to ensure more efficient use of bandwidth. Works at the data link layer and understands MAC addresses - not IP addresses.
Multilevel Switching
Crosstalk
Wireless Application Protocol (WAP)
Bridge
11. Protocol that translates IP address into a MAC address (physical Ethernet address)
Open System Authentication (OSA)
Synchronous Optical Networks (SONETS)
ARP (Address Resolution Protocol)
OSI Layer 7: Application
12. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Metropolitan Area Network (MAN)
Star Topology
Spread Spectrum
Temporal Key Integrity Protocol (TKIP)
13. Provides high-speed access - up to 50 Mbps - to the Internet through existing cable coaxial and fiber lines. Major security concern is the fact that neighbors use the same coaxial network and can monitor each others traffic.
Cable Modem
Tree Topology
Dual-Homed Firewall
Wired Equivalent Privacy (WEP)
14. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
ICMP (Internet Control Message Protocol)
ThinNet - aka 10base2
Coaxial Cables
Bus Topology
15. OSI layer that formats data into a standardized format and deals with the syntax of data - not the meaning. Example formats are ASCII - GIF - JPG - MPEG.
Synchronous Communication
Proxy Firewall
Plenum-rated Cables
OSI Layer 6: Presentation
16. Network segment name for a DMZ created by two physical firewalls.
Packet Filtering Firewall
Screened Sub-Net
Noise
UDP
17. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.
OSI Layer 1: Physical
Subnetting
OSI Data encapsulation
Simplex: One direction.
18. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Fiber Distributed Data Interface (FDDI)
Token Ring (802.5)
Multistation Access Unit (MAU)
Bluejacking
19. If the packet header information is used to determine destinations rather than the routes configured into the router. Packets with this information should be dropped.
Committed Information Rate (CIR)
Commonly used in Internet.
Source Routing
DNS (Domain Name System)
20. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Channel Service Unit/Data Service Unit (CSU/DSU)
Private Branch Exchange (PBX)
10baseT
Shared Key Authentication (SKA)
21. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.
Dedicated Links
LLC (Logical Link Control - 802.2)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
OSI Layer 1: Physical
22. Most expensive type of WAN connection because the fee is based on distance between the two points rather than the amount of bandwidth used. Examples - T1 and T3.
Dedicated Links
Star Topology
Open System Authentication (OSA)
Multistation Access Unit (MAU)
23. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.
Isochronous Communication Processes
Star Topology
Dedicated Links
Commonly used in logical bus - Ethernet - token ring.
24. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
802.15
OSI Layer 6: Presentation
UDP
Layers in the OSI Model
25. Communication devices that are not synchronized - meaning all devices can send data at will - send a sequence of bits framed with a start and stop bit.
Extensible Authentication Protocol (EAP)
Asynchronous Communication
Layers in the OSI Model
OSI Data encapsulation
26. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi
ICMP (Internet Control Message Protocol)
IGMP
Extensible Authentication Protocol (EAP)
Switched Virtual Circuit (SVC)
27. Type of topology where computers all are connected to each other - which provides redundancy.
IPSec
Multilevel Switching
Bluejacking
Commonly used in Internet.
28. Type of LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.
OSI Layer 6: Presentation
Fiber Distributed Data Interface (FDDI)
Session Initiation Protocol (SIP)
Screened Host Firewall
29. Type of network device that links 2 or more network segments - where each segment can function as an independent network. Works at the network layer - works with IP addresses - and has more network knowledge than the other hardware.
Tree Topology
T1
Router
Proxy Firewall Strengths
30. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.
Ring Topology
Circuit Level Proxy Firewall
Packet Filtering Firewall
Multistation Access Unit (MAU)
31. OSI layer that sets up - maintains - and breaks down the dialog (session) between two applications. Controls dialog organization and synchronization. Protocols that work at this layer are NFS (Network File System) - SQL - NetBIOS - RPC.
Carrier sense multiple access with collision detection (CSMA/CD)
Packet Filtering Firewall
OSI Layer 5: Session Layer
Synchronous Optical Networks (SONETS)
32. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Layer 2 Tunneling Protocol (L2TP)
Layers in the OSI Model
ThickNet - aka 10base5.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
33. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.
Remote Access Servers
Fiber-optic Cables
Challenge Handshake Authentication Protocol (CHAP)
Password Authentication Protocol (PAP)
34. Type of firewall that Inspects incoming/outgoing messages for malicious information. If approved - transfers an isolated copy from one network to another. 2nd generation firewall.
Simplex: One direction.
Point-To-Point (PPP)
Proxy Firewall
SPIM
35. Older LAN implementation that uses a token-passing technology. Can send a beacon frame to indicate that a certain computer is failing and its neighbors should reconfigure and work around the detected fault.
Frame Relay
Fiber Distributed Data Interface (FDDI)
802.15
Token Ring (802.5)
36. In a token ring network - each computer is connected to this - which acts as a central hub.
IGMP
Token Passing
Layers in the TCP/IP Model
Multistation Access Unit (MAU)
37. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
OSI Layer 4: Transport Layer
ThickNet - aka 10base5.
Iterated Association
Definition of Protocol
38. Standard that outlines wireless personal area network (WPAN) technologies.
Bridge
Commonly used in FDDI.
Permanent Virtual Circuit (PVC)
802.15
39. Type of cabling problem signals from one wire crossing over to another wire.
Circuit Level Proxy Firewall
Crosstalk
DOS attacks from flooding
Shared Key Authentication (SKA)
40. Spam over IM
Frame Relay
OSI Layer 2: Data Link Layer
ICMP (Internet Control Message Protocol)
SPIM
41. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-
Port Numbers
Pulse Code Modulation (PCM)
Frequency Hopping Spread Spectrum (FHSS)
VLAN
42. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
SPIM
Commonly used in Internet.
Synchronous Data Link Control (SDLC)
Session Initiation Protocol (SIP)
43. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Token Passing
Network Address Translator (NAT)
Bus Topology
ARP (Address Resolution Protocol)
44. Type of backbone network that joins together LAN to other LANs and WANs to LANs - etc. Typically known as Synchronous Optical Networks (SONETS) or FDDI rings.
Pulse Code Modulation (PCM)
Metropolitan Area Network (MAN)
802.11b
Synchronous Optical Networks (SONETS)
45. VPN protocol that works at the network layer - handles multiple connections - provides secure authentication and encryption. Tunnel mode option (payload and header encrypted) - or transport mode (only payload is encrypted).
High Level Data Link Control (HLDC)
IPSec
Digital Subscriber Line (DSL)
Commonly used in Internet.
46. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.
T1
Extensible Authentication Protocol (EAP)
Bastion Host
Virtual Private Network (VPN)
47. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Classless inter-domain routing (CIDR)
Synchronous Communication
Password Authentication Protocol (PAP)
VoIP
48. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Token Passing
ThinNet - aka 10base2
VLAN
Spam over Internet Telephony (SPIT)
49. Most commonly used LAN implementation today. Considered a "chatty" protocol because it allows all systems to hear each other's broadcasts. Has many collisions because all systems share the same medium. Can operate at 10 to 1000 Mbps.
Frequency Hopping Spread Spectrum (FHSS)
Ethernet (802.3)
Coaxial Cables
ARP Poisoning
50. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Digital Subscriber Line (DSL)
Iterated Association
Frequency Hopping Spread Spectrum (FHSS)
Point-To-Point (PPP)