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Test your basic knowledge |
CISSP Telecom And Network Security
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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. 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.
ARP Poisoning
Circuit Level Proxy Firewall
Layers in the OSI Model
Mesh Topology
2. 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.
Application Proxy vs. Circuit Level
Token Passing
Half-Duplex
Asynchronous Communication
3. 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.
Bastion Host
Cable Modem
Screened Sub-Net
Layers in the TCP/IP Model
4. 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
Port Numbers
Commonly used in FDDI.
Loki Attack
Multi-protocol Label Switching
5. Type of firewall that uses a proxy for each service and can understand and make decisions on the protocols used and the commands within those protocols - runs at the application layer.
Cable Modem
Application Proxy Firewall
OSI Layer 5: Session Layer
Point-To-Point Tunneling Protocol (PPTP)
6. 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).
Tree Topology
IPSec
Bluejacking
Proxy Firewall Strengths
7. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
OSI Layer 2: Data Link Layer
Stateful Firewall
Synchronous Communication
Commonly used in FDDI.
8. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
CBC-MAC Protocol (CCMP)
Multi-protocol Label Switching
Temporal Key Integrity Protocol (TKIP)
Router
9. Standard that addresses wireless MAN technologies.
Definition of Protocol
Noise
T1
802.16
10. Strengths of a type of Stateful Firewall: High security - better performance than an application firewall. Weaknesses include more complex - ___________ - if rebooted all information is lost.
Permanent Virtual Circuit (PVC)
DOS attacks from flooding
Temporal Key Integrity Protocol (TKIP)
Integrated Services Digital Network (ISDN)
11. VPN protocol that can run in other networks (frame relay - X.25 - ATM). Does not provide encryption - lacks the security to be called a true "VPN" solution.
Definition of Protocol
Full-Duplex
DOS attacks from flooding
Layer 2 Tunneling Protocol (L2TP)
12. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Wired Equivalent Privacy (WEP)
Password Authentication Protocol (PAP)
Synchronous Optical Networks (SONETS)
Commonly used in FDDI.
13. Type of network layout that separates and group computers logically.
ThickNet - aka 10base5.
VLAN
Carrier sense multiple access with collision detection (CSMA/CD)
Noise
14. Protocol where all computers compete for the shard network cable - listen to learn when they can transmit data - susceptible to data collisions. Used by Ethernet.
IGMP
VLAN
Channel Service Unit/Data Service Unit (CSU/DSU)
Carrier sense multiple access with collision detection (CSMA/CD)
15. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Iterated Association
Ethernet (802.3)
T1
Screened Host Firewall
16. Set of rules that dictates how computer communicate over networks.
Committed Information Rate (CIR)
Layer 2 Tunneling Protocol (L2TP)
Definition of Protocol
Simplex: One direction.
17. A packet switching technology that is used by telecommunication services for data-only traffic. It is a subscriber based service that operates within the network and data link layers.
OSI Layer 1: Physical
ThickNet - aka 10base5.
X.25
Packet Switching
18. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
OSI Layer 2: Data Link Layer
Bus Topology
Layers in the TCP/IP Model
Frequency Hopping Spread Spectrum (FHSS)
19. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Packet Switching
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Star Topology
Shared Key Authentication (SKA)
20. OSI layer that provides end to end transmission between computer systems. Protocols that use this layer are TCP (Transmission Control Protocol) - UDP (User Datagram Protocol) - SPX (Sequenced Packet Exchange) - and SSL.
Multistation Access Unit (MAU)
802.11
OSI Layer 4: Transport Layer
Loki Attack
21. 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).
Half-Duplex
UDP
Channel Service Unit/Data Service Unit (CSU/DSU)
Twisted Pair Cables
22. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Open System Authentication (OSA)
Challenge Handshake Authentication Protocol (CHAP)
Service Set ID (SSID)
23. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Password Authentication Protocol (PAP)
Ring Topology
Twisted Pair Cables
Synchronous Data Link Control (SDLC)
24. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Definition of Protocol
VoIP
Session Initiation Protocol (SIP)
Synchronous Communication
25. OSI layer that provides routing - addressing - and fragmentation of packets. This layer can determine alternative routes to avoid network congestion. Protocols that use this layer are IP - ICMP - RIP - OSPF (Open Shortest Path First) - BGP (Border Ga
ARP (Address Resolution Protocol)
OSI Layer 3: Network Layer
Cable Modem
802.11i
26. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.
Private Branch Exchange (PBX)
ARP Poisoning
Frame Relay
Bluejacking
27. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
Commonly used in FDDI.
Bridge
Kernel Proxy Firewall
28. New variant to traditional email spam on VoIP networks.
Direct Sequence Spread Spectrum (DSSS)
Iterated Association
Spam over Internet Telephony (SPIT)
Virtual Private Network (VPN)
29. Communication devices that determine synchronization scheme before data transmission.
Token Ring (802.5)
Isochronous Communication Processes
Synchronous Communication
802.11i
30. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Classless inter-domain routing (CIDR)
Multi-protocol Label Switching
Cable Modem
SPIM
31. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
OSI Data encapsulation
Packet Filtering Firewall
Pulse Code Modulation (PCM)
Tree Topology
32. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Full-Duplex
Packet Switching
Crosstalk
Challenge Handshake Authentication Protocol (CHAP)
33. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Star Topology
Repeaters
ThinNet - aka 10base2
Multilevel Switching
34. 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.
Commonly used in Ethernet.
Wired Equivalent Privacy (WEP)
Router
Classless inter-domain routing (CIDR)
35. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Frame Relay
VLAN
DNS (Domain Name System)
Circuit Switching
36. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub
Shared Key Authentication (SKA)
Challenge Handshake Authentication Protocol (CHAP)
Frame Relay
Switch
37. Type of cabling problem signals from one wire crossing over to another wire.
T3
Crosstalk
802.11i
ThickNet - aka 10base5.
38. In the OSI layer 5 - these are the types of what?
OSI Layer 6: Presentation
Simplex: One direction.
Network Address Translator (NAT)
Loki Attack
39. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Distributed Environment Challenge
Session Initiation Protocol (SIP)
802.11a
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
40. Protocol based on the SDLC protocol - except it is an open protocol - supports full-duplex connections - and provides a higher throughput. It also provides polling - which enables secondary units to communicate with primary units.
Layers in the TCP/IP Model
Point-To-Point (PPP)
High Level Data Link Control (HLDC)
802.11
41. Protocol that translates IP address into a MAC address (physical Ethernet address)
Open Relay
ARP (Address Resolution Protocol)
Private Branch Exchange (PBX)
IPv6
42. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.
Switched Virtual Circuit (SVC)
Dual-Homed Firewall
Port Numbers
Wireless Application Protocol (WAP)
43. Standard that outlines wireless personal area network (WPAN) technologies.
Metropolitan Area Network (MAN)
802.15
Dynamic Packet Filtering
Blue Boxing
44. 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.
T3
Network Address Translator (NAT)
Blue Boxing
Proxy Firewall
45. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Application Proxy Firewall
Noise
IPv6
Blue Boxing
46. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Subnetting
Screened Sub-Net
Direct Sequence Spread Spectrum (DSSS)
Integrated Services Digital Network (ISDN)
47. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.
Integrated Services Digital Network (ISDN)
Stateful Firewall
ICMP (Internet Control Message Protocol)
Token Ring (802.5)
48. This network technology determines which system will send data based on which one has the token.
Fiber Distributed Data Interface (FDDI)
Token Passing
Screened Sub-Net
SOCKS Firewall
49. As they travel down the OSI model on the source computer - each layer adds its own information so the corresponding layer on the destination machine knows how to process the data.
OSI Data encapsulation
X.25
Layers in the OSI Model
Ring Topology
50. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.
Loki Attack
Screened Sub-Net
ThickNet - aka 10base5.
Plenum-rated Cables