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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. This is a standard for fiber-optic cabling and uses self-healing network rings. This standard describes the interfaces that can be used over fiber lines and the signaling that can be employed. Works at the physical layer of the OSI model.
Switched Virtual Circuit (SVC)
Application Proxy vs. Circuit Level
Synchronous Optical Networks (SONETS)
Direct Sequence Spread Spectrum (DSSS)
2. 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.
High Level Data Link Control (HLDC)
Frame Relay
Commonly used in Ethernet.
Definition of Protocol
3. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
IPSec
TCP
Multistation Access Unit (MAU)
OSI Data encapsulation
4. 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.
Serial Line Internet Protocol (SLIP)
Noise
Commonly used in Internet.
Fiber-optic Cables
5. 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).
Screened Sub-Net
IPSec
ThinNet - aka 10base2
ARP (Address Resolution Protocol)
6. Wireless standard that will improve security of wireless communication
Application Proxy vs. Circuit Level
ICMP (Internet Control Message Protocol)
802.11i
Frame Relay
7. This network technology determines which system will send data based on which one has the token.
Switched Virtual Circuit (SVC)
Token Passing
Application Proxy Firewall
Frame Relay
8. Developed to replace the aging telephone and analog systems. BRI rate that uses two B channels (send/receive) - and one D channel (control information) - and PRI rate that uses up to 23 B channels. Supports voice - data - and video. Provides up to 1.
Integrated Services Digital Network (ISDN)
Application Proxy vs. Circuit Level
Spread Spectrum
Synchronous Communication
9. 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.
ThickNet - aka 10base5.
Half-Duplex
LLC (Logical Link Control - 802.2)
Synchronous Optical Networks (SONETS)
10. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
T1
Carrier sense multiple access with collision detection (CSMA/CD)
UDP
Spam over Internet Telephony (SPIT)
11. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.
Open System Authentication (OSA)
Spam over Internet Telephony (SPIT)
Direct Sequence Spread Spectrum (DSSS)
Commonly used in Ethernet.
12. Malware attack that sends commands inside of an ICMP packet.
Loki Attack
Point-To-Point Tunneling Protocol (PPTP)
Bridge
Spam over Internet Telephony (SPIT)
13. 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.
Bridge
Layers in the TCP/IP Model
Plenum-rated Cables
ICMP (Internet Control Message Protocol)
14. 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.
Layer 2 Tunneling Protocol (L2TP)
802.11i
Permanent Virtual Circuit (PVC)
ARP (Address Resolution Protocol)
15. 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.
Repeaters
Carrier sense multiple access with collision detection (CSMA/CD)
Asynchronous Communication
Iterated Association
16. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Crosstalk
OSI Layer 4: Transport Layer
Shared Key Authentication (SKA)
Synchronous Optical Networks (SONETS)
17. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Screened Host Firewall
Packet Filtering Firewall
Synchronous Data Link Control (SDLC)
Kernel Proxy Firewall
18. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Source Routing
Coaxial Cables
SOCKS Firewall
OSI Layer 7: Application
19. 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.
OSI Layer 2: Data Link Layer
Wireless Application Protocol (WAP)
ThinNet - aka 10base2
Port Numbers
20. 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).
Distributed Environment Challenge
LLC (Logical Link Control - 802.2)
Application Proxy vs. Circuit Level
Twisted Pair Cables
21. 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)
X.25
Bluejacking
ARP (Address Resolution Protocol)
22. New variant to traditional email spam on VoIP networks.
Crosstalk
OSI Layer 6: Presentation
VLAN
Spam over Internet Telephony (SPIT)
23. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Dual-Homed Firewall
DOS attacks from flooding
ThinNet - aka 10base2
Port Numbers
24. VPN protocol that works at the data link layer - can only run in IP networks - and provides encryption and encapsulation. This is Microsoft's VPN solution.
802.16
Point-To-Point Tunneling Protocol (PPTP)
Direct Sequence Spread Spectrum (DSSS)
Asynchronous Communication
25. 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.
Wide Area Network (WAN)
SPIM
Proxy Firewall
Frequency Hopping Spread Spectrum (FHSS)
26. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
IPv6
Packet Filtering Firewall
Frame Relay
Loki Attack
27. 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.
Packet Switching
OSI Layer 3: Network Layer
Ethernet (802.3)
Committed Information Rate (CIR)
28. Both directions - only one application can send information at a time
IGMP
Half-Duplex
Challenge Handshake Authentication Protocol (CHAP)
X.25
29. Type of wireless security standard that uses AES in CBC mode.
Dual-Homed Firewall
Dynamic Packet Filtering
CBC-MAC Protocol (CCMP)
Trunk Lines
30. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
IGMP
Bluejacking
802.11a
Cable Modem
31. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Direct Sequence Spread Spectrum (DSSS)
Temporal Key Integrity Protocol (TKIP)
Open Relay
Synchronous Communication
32. Used when a LAN device needs to communicate with WAN devices over telephone lines. Ensures the necessary electrical signaling and format are used. Interfaces with Data Terminal Equipment (DTE) and Data Circuit-Terminal Equipment (DCE).
Coaxial Cables
Channel Service Unit/Data Service Unit (CSU/DSU)
Carrier sense multiple access with collision detection (CSMA/CD)
Virtual Private Network (VPN)
33. Protocol for allowing multi-cast (one to many) communication
Circuit Level Proxy Firewall
IGMP
Spam over Internet Telephony (SPIT)
Carrier sense multiple access with collision detection (CSMA/CD)
34. These are used to connect multiple switches for traffic of the same classification. Example - two voice switches at a local phone company's central office.
ThickNet - aka 10base5.
Bus Topology
Trunk Lines
Network Address Translator (NAT)
35. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Subnetting
High Level Data Link Control (HLDC)
Permanent Virtual Circuit (PVC)
Loki Attack
36. In a token ring network - each computer is connected to this - which acts as a central hub.
Switch
802.11b
Multistation Access Unit (MAU)
Packet Filtering Firewall
37. Firewall that does not require a proxy for each service; does not provide detailed access control; but does provide for a wider range of protocols.
Point-To-Point Tunneling Protocol (PPTP)
Application Proxy vs. Circuit Level
Carrier sense multiple access with collision detection (CSMA/CD)
Digital Subscriber Line (DSL)
38. 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.
IGMP
Packet Switching
OSI Layer 4: Transport Layer
Dedicated Links
39. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Network Address Translator (NAT)
Fiber-optic Cables
Temporal Key Integrity Protocol (TKIP)
Digital Subscriber Line (DSL)
40. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Frequency Hopping Spread Spectrum (FHSS)
Subnetting
Password Authentication Protocol (PAP)
LLC (Logical Link Control - 802.2)
41. Standard that outlines wireless personal area network (WPAN) technologies.
802.15
Twisted Pair Cables
Iterated Association
Fiber-optic Cables
42. Identifys a WLAN. Can be used to segment environments into different WLANS.
Subnetting
Screened Host Firewall
DOS attacks from flooding
Service Set ID (SSID)
43. Type of topology where computers all are connected to each other - which provides redundancy.
Star Topology
Cable Modem
Commonly used in Internet.
SOCKS Firewall
44. 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.
Source Routing
Star Topology
Loki Attack
T1
45. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Ring Topology
OSI Layer 3: Network Layer
CBC-MAC Protocol (CCMP)
Multistation Access Unit (MAU)
46. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Attenuation
Blue Boxing
Serial Line Internet Protocol (SLIP)
Network Address Translator (NAT)
47. 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.
Asynchronous Transfer Mode (ATM)
Circuit Level Proxy Firewall
Open System Authentication (OSA)
OSI Data encapsulation
48. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.
Tree Topology
VLAN
Definition of Protocol
T1
49. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Commonly used in FDDI.
Noise
Switched Virtual Circuit (SVC)
OSI Layer 6: Presentation
50. 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.
Private Branch Exchange (PBX)
Packet Switching
OSI Layer 5: Session Layer
Frame Relay