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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. 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.
ARP Poisoning
Direct Sequence Spread Spectrum (DSSS)
Private Branch Exchange (PBX)
Session Initiation Protocol (SIP)
2. 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.
OSI Layer 5: Session Layer
Router
Synchronous Optical Networks (SONETS)
Multilevel Switching
3. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Point-To-Point (PPP)
VoIP
Layer 2 Tunneling Protocol (L2TP)
802.16
4. Problems: Central device is a single point of failure.
Ethernet (802.3)
ThinNet - aka 10base2
Switch
Star Topology
5. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Password Authentication Protocol (PAP)
Shared Key Authentication (SKA)
Circuit Switching
Switch
6. 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.
Bridge
Fiber Distributed Data Interface (FDDI)
Trunk Lines
Packet Filtering Firewall
7. This network technology determines which system will send data based on which one has the token.
Frequency Hopping Spread Spectrum (FHSS)
DNS (Domain Name System)
Synchronous Optical Networks (SONETS)
Token Passing
8. Both directions - both applications can send information at a time. Session Layer Communication Modes
Screened Host Firewall
Bridge
Full-Duplex
FDDI-2
9. Wireless communication that distributes individual signals across the allocated frequencies.
Definition of Protocol
Spread Spectrum
Attenuation
Asynchronous Transfer Mode (ATM)
10. 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.
Shared Key Authentication (SKA)
Source Routing
Token Ring (802.5)
Dynamic Packet Filtering
11. Type of cabling problem signals from one wire crossing over to another wire.
Ethernet (802.3)
Metropolitan Area Network (MAN)
ThinNet - aka 10base2
Crosstalk
12. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.
IGMP
Port Numbers
Dynamic Packet Filtering
UDP
13. 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
Bastion Host
Switch
ARP Poisoning
Packet Filtering Firewall
14. 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.
UDP
Wireless Application Protocol (WAP)
Proxy Firewall
Commonly used in FDDI.
15. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Commonly used in logical bus - Ethernet - token ring.
Metropolitan Area Network (MAN)
Trunk Lines
Session Initiation Protocol (SIP)
16. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
10baseT
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Packet Switching
IPv6
17. In the OSI layer 5 - these are the types of what?
Ethernet (802.3)
Pulse Code Modulation (PCM)
VLAN
Simplex: One direction.
18. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
802.11
ThinNet - aka 10base2
Switch
Proxy Firewall
19. 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.
Open Relay
Service Set ID (SSID)
High Level Data Link Control (HLDC)
Plenum-rated Cables
20. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.
Circuit Level Proxy Firewall
Committed Information Rate (CIR)
Frame Relay
OSI Layer 5: Session Layer
21. 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.
802.11i
Pulse Code Modulation (PCM)
Isochronous Communication Processes
Metropolitan Area Network (MAN)
22. 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
Multi-protocol Label Switching
Mesh Topology
802.11a
23. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Blue Boxing
ThinNet - aka 10base2
Bastion Host
Shared Key Authentication (SKA)
24. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Shared Key Authentication (SKA)
Ethernet (802.3)
Open Relay
Layers in the OSI Model
25. 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
Proxy Firewall Strengths
Ring Topology
ICMP (Internet Control Message Protocol)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
26. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
OSI Layer 4: Transport Layer
CBC-MAC Protocol (CCMP)
Permanent Virtual Circuit (PVC)
Digital Subscriber Line (DSL)
27. Security wireless standard that enables data transfers to be encrypted. Static encryption keys among clients - short 40 bit keys - RC4 encryption - ineffective use of 24 bit IV's - and no packet integrity.
Wired Equivalent Privacy (WEP)
Frequency Hopping Spread Spectrum (FHSS)
Packet Filtering Firewall
Proxy Firewall
28. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
SOCKS Firewall
Repeaters
Dual-Homed Firewall
Synchronous Optical Networks (SONETS)
29. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit
OSI Layer 6: Presentation
Synchronous Data Link Control (SDLC)
Permanent Virtual Circuit (PVC)
Switched Virtual Circuit (SVC)
30. 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.
Isochronous Communication Processes
Stateful Firewall
Session Initiation Protocol (SIP)
802.11i
31. 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.
LLC (Logical Link Control - 802.2)
IPSec
Coaxial Cables
Tree Topology
32. Type of firewall that lies between the perimeter router and and LAN.
FDDI-2
Proxy Firewall
Screened Host Firewall
UDP
33. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
X.25
Tree Topology
Bastion Host
Layers in the TCP/IP Model
34. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Carrier sense multiple access with collision detection (CSMA/CD)
Dual-Homed Firewall
Layers in the TCP/IP Model
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
35. Type of network layout that separates and group computers logically.
Proxy Firewall
UDP
Simplex: One direction.
VLAN
36. 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.
Trunk Lines
Point-To-Point Tunneling Protocol (PPTP)
TCP
Multistation Access Unit (MAU)
37. 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.
Bridge
Frame Relay
Cable Modem
Crosstalk
38. 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.
Bastion Host
Open System Authentication (OSA)
Pulse Code Modulation (PCM)
X.25
39. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
UDP
Source Routing
Screened Sub-Net
802.16
40. Protocol stack used instead of TCP/IP on wireless devices. The "gap" in this protocol involves translating its secure traffic to SSL or TLS - which is typically done by a 3rd party.
Ethernet (802.3)
Wireless Application Protocol (WAP)
VLAN
Source Routing
41. 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.
Twisted Pair Cables
Port Numbers
Carrier sense multiple access with collision detection (CSMA/CD)
Metropolitan Area Network (MAN)
42. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
FDDI-2
Proxy Firewall
Distributed Environment Challenge
Remote Access Servers
43. 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.
Frequency Hopping Spread Spectrum (FHSS)
UDP
OSI Layer 5: Session Layer
Noise
44. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Blue Boxing
Kernel Proxy Firewall
Half-Duplex
Network Address Translator (NAT)
45. 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).
Packet Switching
Token Passing
Remote Access Servers
Twisted Pair Cables
46. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
DNS (Domain Name System)
Noise
LLC (Logical Link Control - 802.2)
Password Authentication Protocol (PAP)
47. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Token Passing
Noise
OSI Layer 7: Application
Dynamic Packet Filtering
48. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
Metropolitan Area Network (MAN)
Commonly used in Internet.
Attenuation
49. 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.
Plenum-rated Cables
Screened Sub-Net
DNS (Domain Name System)
Switch
50. A WAN protocol that works at the data link layer and performs packet switching. Economical choice because the fee is based on bandwidth usage rather than a dedicated pipeline.
Switch
OSI Layer 6: Presentation
Frame Relay
Digital Subscriber Line (DSL)