Domain 4 Flashcards
Topology where only 1 system can transmit data at a time
Ring Topology
Topology where all systems can transmit data simultaneously
Bus Topology
Topology that employs a centralized connection device (like a hub or switch) that each system is connected to
Star Topology
Topology that has a root node and branch nodes that are at least three levels deep
Tree Topology
Topology that connects systems to other systems using numerous paths
Mesh Topology
What type of network has one channel and can only send one signal at a time? Example: Ethernet
Baseband Network
What type of network has multiple channels and can send multiple signals at a time like cable television?
Broadband Network
Does IPv4 use 32-bit or 128-bit addressing scheme?
IPv4 uses 32-bit, and IPv6 uses 128-bit.
What Layer can gateways and application layer firewalls be found in?
Application Layer (7)
What Layer is responsible for encryption and compression?
Presentation Layer (6)
What Layer uses simplex, half-duplex, and full duplex communications?
Session Layer (5)
What Layer is responsible for error detection and managing connection integrity?
Transport Layer (4)
What Layer can routers and bridge routers be found in?
Network Layer (3)
What Layer can switches, bridges, Ethernet card & its MAC address be found in?
Data Link Layer (2)
Data Link Layer (2) is divided into which two sub-layers?
LLC and MAC are the sub-layers of Layer 2
What Layer can NICs, hubs, repeaters, concentrators, and amplifiers be found in?
Physical Layer (1)
Name a few protocols in the Application Layer.
HTTP, FTP, SMTP, Telnet, SNMP, POP3, IMAP. . . .
Name a few protocols in the Presentation Layer.
ASCII, JPEG, MPEG, MIDI, EBCDICM.
Name a few protocols in the Session Layer.
NFS, SQL, RPC.
Name a few protocols in the Transport Layer.
TCP, UDP, SSL, TLS, SPX.
Name a few protocols in the Network Layer.
ICMP, IGMP, IP, IPsec, RIP, OSPF, NAT, SKIP, IPX, BGP.
Name a few protocols in the Data Link Layer.
ARP, RARP, SLIP, PPP, L2F, L2TP, PPTP, FDDI, ISDN.
Name a few protocols in the Physical Layer.
X.21, HSSI, SONET, EIA/TIA-232 & 449, V.24, V.35.
What WAP Configuration Mode allows two wireless networking devices (such as NICs) to communicate w/out a centralized control authority?
Ad-Hoc, Infrastructure, Stand-Alone, Wired Extension, Enterprise-Extended, or Bridge Mode?
Ad Hoc Mode
What WAP Configuration Mode requires a WAP that does not allow wireless NICs on systems to directly communicate?
Ad-Hoc, Infrastructure, Stand-Alone, Wired Extension, Enterprise-Extended, or Bridge Mode?
Infrastructure Mode
What WAP Configuration Mode occurs when there is a WAP connecting wireless clients to each other but not to any wired resources?
Ad-Hoc, Infrastructure, Stand-Alone, Wired Extension, Enterprise-Extended, or Bridge Mode?
Stand-Alone Mode
What WAP Configuration Mode occurs when the WAP acts as a connection point to link the wireless clients to the wired network?
Ad-Hoc, Infrastructure, Stand-Alone, Wired Extension, Enterprise-Extended, or Bridge Mode?
Wired Extension Mode
What WAP Configuration Mode is when multiple WAPs are used to connect a large physical area to the same wired network?
Ad-Hoc, Infrastructure, Stand-Alone, Wired Extension, Enterprise-Extended, or Bridge Mode?
Enterprise-Extended Mode
What WAP Configuration Mode occurs when a wireless connection is used to link two wired networks?
Ad-Hoc, Infrastructure, Stand-Alone, Wired Extension, Enterprise-Extended, or Bridge Mode?
Bridge Mode
____________ are conducted to discover areas of a physical environment where unwanted wireless access might be possible.
Site Surveys
Which Wireless Encryption Protocol was an early attempt to provide wireless 802.11 security that uses a secret key (symmetric) among all WAPs to encrypt packets before they’re transmitted over the wireless link?
WEP
Which Wireless Encryption Protocol was created to replace WEP and to be the interim solution until 802.11i (WPA2) came out?
WPA
Which Wireless Encryption Protocol is also known as 802.11i and uses AES encryption to provide confidentiality, and CCMP to create a Message Integrity Check (MIC), which provides integrity?
WPA2
Which Wireless Encryption Protocol is a standard port-based network access control that ensures clients cannot communicate with a resource until authentication has taken place?
802.1X/EAP
Which Wireless Encryption Protocol is supported by WPA & WPA2?
802.1X/EAP
Which Wireless Encryption Protocol allows other solutions such as RADIUS, TACACS, certs, smart cards, token devices & biometrics to be integrated into wireless networks which provide techniques for mutual and multi-factor authentication?
802.1X/EAP
What Wireless Encryption Protocol is a framework that allows for new authentication tech to be compatible with existing wireless or point-to-point connections?
EAP
What Wireless Encryption Protocol encapsulates EAP methods within a TLS tunnel providing = authentication & potentially encryption?
PEAP
What Wireless Encryption Protocol is a CISCO proprietary EAP method?
LEAP
What Wireless Encryption Protocol was created to replace WEP with improvements including a key-mixing function that combines the Initialization Vector (IV) w/the secret root key before using that key with the RC4 to perform encryption?
TKIP
What Wireless Encryption Protocol uses AES encryption w/a 128-bit key and is the preferred protocol of 802.11 wireless?
CCMP
Which of the below is a wireless encryption protocol, and which is the IEEE standard for wireless?
1) 802.1X/EAP
2) 802.11
1) 802.1X/EAP = Encryption Protocol
2) 802.11 = IEEE standard for wireless networking
What is an authentication technique that redirects a newly connected wireless Web client to a portal access control page?
Captive Portals
What are the 4 basic types of Firewalls and what layers do they operate in?
1) Static Packet-Filtering Firewall (3)
2) Application-Level Gateway Firewall (7)
3) Circuit-Level Gateway Firewall (5)
4) Stateful Inspection Firewall/Dynamic Packet Filtering Firewall (3 & 4)
Which Firewall filters traffic by examining data from a message header?
1) Static Packet-Filtering Firewall
2) Application-Level Gateway Firewall
3) Circuit-Level Gateway Firewall
4) Stateful Inspection Firewall/Dynamic Packet Filtering Firewall
1) Static Packet-Filtering Firewall
Which Firewall filters traffic based on the Internet service (aka the application) used to transmit or receive the data?
1) Static Packet-Filtering Firewall
2) Application-Level Gateway Firewall
3) Circuit-Level Gateway Firewall
4) Stateful Inspection Firewall/Dynamic Packet Filtering Firewall
2) Application-Level Gateway Firewall
Which Firewall is used to establish comm session between trusted partners?
1) Static Packet-Filtering Firewall
2) Application-Level Gateway Firewall
3) Circuit-Level Gateway Firewall
4) Stateful Inspection Firewall/Dynamic Packet Filtering Firewall
3) Circuit-Level Gateway Firewall
Which Firewall is able to grant a broader range of access for authorized users and activities and actively watches for and blocks unauthorized users and activities? It’s also known as third-generation firewall.
1) Static Packet-Filtering Firewall
2) Application-Level Gateway Firewall
3) Circuit-Level Gateway Firewall
4) Stateful Inspection Firewall/Dynamic Packet Filtering Firewall
4) Stateful Inspection Firewall/Dynamic Packet Filtering Firewall
Where is the Firewall in a Single Tier firewall deployment?
places the private network behind a firewall
Describe a Two Tier firewall deployment.
A Two Tier firewall deployment uses either a firewall w/3+ interfaces or two firewalls in a series which allows for a DMZ or publicly accessible extranet.
Describe a Three Tier/Multitier firewall deployment.
A Three Tier/Multitier firewall deployment deploys multiple subnets between the private network and the Internet separated by firewalls.
What type of cable is shielded against EMI and is either Thinnet or Thicknet?
Coaxial Cable
What type of cable can transmit only a single signal at a time?
Baseband Cable
What type of cable can transmit multiple signals simultaneously?
Broadband Cable
What type of cable is an extremely thin and flexible cable consisting of four pairs of wires that are twisted around each other and sheathed in a PVC insulation?
Twisted Pair
What type of cable provides additional protection against EMI?
Shielded Twisted Pair
Which type of fiber uses multiple modes (paths) of light resulting in dispersion and is for short distances?
a) Multimode Fiber
b) Single-mode Fiber
a) Multimode Fiber
Which type of fiber uses a single strand of fiber and is used for long longer distances and high-speed networking?
a) Multimode Fiber
b) Single-mode Fiber
b) Single-mode Fiber
Which of the below allows numerous devices to communicate over the same medium?
a) Ethernet
b) CMSA
c) Token Ring
d) FDDI
a) Ethernet
Which of the below was designed to address collisions?
a) Ethernet
b) CMSA
c) Token Ring
d) FDDI
b) CMSA
Which of the below is a legacy LAN technology that controls which systems can transmit data over the network medium?
a) Ethernet
b) CMSA
c) Token Ring
d) FDDI
c) Token Ring
Which of the below is a legacy LAN technology, which is a high-speed token-passing technology that employs two rings w/traffic flowing in opposite directions?
a) Ethernet
b) CMSA
c) Token Ring
d) FDDI
d) FDDI
Which of the below relies on a timing mechanism based on an independent close or time stamp that can support high rates of data transfer?
a) Synchronous Communication
b) Asynchronous Communication
a) Synchronous Communication
Which of the below relies on a stop and start delimiter bit to manage the transmission of data?
a) Synchronous Communication
b) Asynchronous Communication
b) Asynchronous Communication
Which of the below is what our ears hear, a continuous wave of information (like a vinyl record)?
a) Analog Communication
b) Digital Communication
a) Analog Communication
Which of the below transfers data in bits: ones and zeroes (like a CD)?
a) Analog Communication
b) Digital Communication
b) Digital Communication
Which of the below transfers data in bits: ones and zeroes (like a CD)?
a) Analog Communication
b) Digital Communication
b) Digital Communication
Which of the below has one channel, and can only send one signal at a time (such as Ethernet networks)?
a) Baseband Networks
b) Broadband Networks
a) Baseband Networks
Which of the below has multiple channels and can send multiple signals at a time, like cable TV?
a) Baseband Networks
b) Broadband Networks
b) Broadband Networks