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Test your basic knowledge |
CISSP Telecom And Network Security
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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. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Layers in the TCP/IP Model
Application Proxy vs. Circuit Level
Noise
UDP
2. 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.
Stateful Firewall
OSI Layer 2: Data Link Layer
Circuit Level Proxy Firewall
Point-To-Point Tunneling Protocol (PPTP)
3. 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.
Point-To-Point Tunneling Protocol (PPTP)
Token Ring (802.5)
Noise
Loki Attack
4. 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.
OSI Layer 5: Session Layer
Frequency Hopping Spread Spectrum (FHSS)
Repeaters
IPSec
5. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
UDP
Bastion Host
Open Relay
Challenge Handshake Authentication Protocol (CHAP)
6. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
Mesh Topology
Router
ARP (Address Resolution Protocol)
7. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Loki Attack
Switched Virtual Circuit (SVC)
Layers in the OSI Model
Service Set ID (SSID)
8. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
ICMP (Internet Control Message Protocol)
Ethernet (802.3)
Circuit Level Proxy Firewall
9. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Distributed Environment Challenge
802.11b
T3
Bridge
10. 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.
Direct Sequence Spread Spectrum (DSSS)
Extensible Authentication Protocol (EAP)
Router
Coaxial Cables
11. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
OSI Layer 7: Application
802.11
Synchronous Optical Networks (SONETS)
ICMP (Internet Control Message Protocol)
12. 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.
Open System Authentication (OSA)
TCP
Dedicated Links
VLAN
13. 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)
Switch
Multistation Access Unit (MAU)
Synchronous Data Link Control (SDLC)
14. 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.
Remote Access Servers
High Level Data Link Control (HLDC)
Application Proxy Firewall
Iterated Association
15. 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).
IGMP
Integrated Services Digital Network (ISDN)
Twisted Pair Cables
802.11i
16. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Distributed Environment Challenge
Application Proxy vs. Circuit Level
Attenuation
Packet Filtering Firewall
17. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
FDDI-2
ICMP (Internet Control Message Protocol)
ARP (Address Resolution Protocol)
Synchronous Data Link Control (SDLC)
18. Type of firewall that lies between the perimeter router and and LAN.
Screened Host Firewall
802.16
OSI Layer 2: Data Link Layer
Mesh Topology
19. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Half-Duplex
OSI Layer 4: Transport Layer
Dual-Homed Firewall
Pulse Code Modulation (PCM)
20. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co
Session Initiation Protocol (SIP)
Proxy Firewall
Layer 2 Tunneling Protocol (L2TP)
Private Branch Exchange (PBX)
21. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
ICMP (Internet Control Message Protocol)
Circuit Switching
Bus Topology
Iterated Association
22. 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.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
ICMP (Internet Control Message Protocol)
Stateful Firewall
802.16
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.
High Level Data Link Control (HLDC)
Isochronous Communication Processes
Remote Access Servers
Point-To-Point Tunneling Protocol (PPTP)
24. 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.
Plenum-rated Cables
Challenge Handshake Authentication Protocol (CHAP)
Screened Sub-Net
OSI Data encapsulation
25. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.11b
Dynamic Packet Filtering
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Synchronous Data Link Control (SDLC)
26. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Stateful Firewall
Ethernet (802.3)
Bastion Host
Shared Key Authentication (SKA)
27. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.
Digital Subscriber Line (DSL)
VLAN
Synchronous Communication
Challenge Handshake Authentication Protocol (CHAP)
28. Protocol that increases address size from 32 bits to 128 bits
802.11i
Layers in the OSI Model
IPv6
IGMP
29. 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.
Application Proxy Firewall
Ethernet (802.3)
Commonly used in logical bus - Ethernet - token ring.
Private Branch Exchange (PBX)
30. 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.
OSI Layer 4: Transport Layer
Pulse Code Modulation (PCM)
Token Passing
Wired Equivalent Privacy (WEP)
31. Protocol that transfers data in fixed cells (53 bytes) - is a WAN technology - and transmits data at very high rates. Supports voice - data - and video applications.
Multilevel Switching
Source Routing
Asynchronous Transfer Mode (ATM)
Iterated Association
32. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Tree Topology
SPIM
Source Routing
Ring Topology
33. 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.
OSI Layer 1: Physical
DOS attacks from flooding
ICMP (Internet Control Message Protocol)
Bluejacking
34. 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.
IPSec
Port Numbers
Switch
Commonly used in Internet.
35. 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
Dynamic Packet Filtering
Port Numbers
Proxy Firewall Strengths
ThinNet - aka 10base2
36. 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
Multi-protocol Label Switching
Source Routing
OSI Layer 7: Application
Frame Relay
37. Wireless communication that distributes individual signals across the allocated frequencies.
Definition of Protocol
Spread Spectrum
Frequency Hopping Spread Spectrum (FHSS)
Commonly used in FDDI.
38. 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.
Coaxial Cables
OSI Layer 2: Data Link Layer
Circuit Level Proxy Firewall
Synchronous Communication
39. 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.
802.11a
Metropolitan Area Network (MAN)
OSI Data encapsulation
Fiber-optic Cables
40. Type of firewall that is also know as a screening router and is accomplished by ACL's (Lines of text called rules). Traffic can be filtered by address - ports - and protocol types. 1st generation firewall - runs at the network layer.
Session Initiation Protocol (SIP)
Packet Filtering Firewall
Asynchronous Transfer Mode (ATM)
OSI Data encapsulation
41. Communication devices that determine synchronization scheme before data transmission.
Bus Topology
Synchronous Communication
Frame Relay
Simplex: One direction.
42. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Half-Duplex
Serial Line Internet Protocol (SLIP)
802.11a
IPv6
43. SMTP server that is configured for sending email from any source to and destination.
Open Relay
802.11a
Ring Topology
Commonly used in FDDI.
44. 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.
Virtual Private Network (VPN)
ARP (Address Resolution Protocol)
Point-To-Point (PPP)
Switched Virtual Circuit (SVC)
45. Wireless standard that will improve security of wireless communication
ICMP (Internet Control Message Protocol)
Multi-protocol Label Switching
802.11i
Integrated Services Digital Network (ISDN)
46. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Packet Switching
Bluejacking
Ring Topology
Password Authentication Protocol (PAP)
47. 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.
Packet Switching
IPv6
Commonly used in FDDI.
Wired Equivalent Privacy (WEP)
48. 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
Switch
OSI Layer 5: Session Layer
Integrated Services Digital Network (ISDN)
Iterated Association
49. 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.
OSI Layer 3: Network Layer
OSI Layer 1: Physical
Dynamic Packet Filtering
Noise
50. 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
Proxy Firewall
Shared Key Authentication (SKA)
Spread Spectrum