WGU D315 Network and Security Foundation
Actual Exam Questions and Verified Answers |
Brand New Version
1. Which OSI layer is related to the IP protocol - ANSWER Network 3
2. Which OSI layer is organizing the bits over the physical layer between
devices in the same collision domain? - ANSWER Data Link 2 - They are
in the same Frame
3. Which OSI layer is a Switch at? - ANSWER Data Link 2
4. Which OSI layer is a WAP (Wireless Access Point) at? - ANSWER Data
Link 2
5. What is the CIA Triade Confidentiality? - ANSWER Protect from
unauthorized access and use, protecting data access in storage, transit and
process
6. 100m long Cat 5 cable supports speeds up to - ANSWER 100 Mb/s
7. 100m long Cat 5e cable supports speeds up to - ANSWER 1000 Mb/s or 1
Gb/s
8. 100m long Cat 6 cable supports speeds up to - ANSWER 10 Gb/s
9. 100m long Cat 6a cable supports speeds up to - ANSWER 10 Gb/s
,10.Does a firewall provide two way protection? - ANSWER Yes, it protects
ingress and egress data
11.Firewall that only checks the address label - ANSWER Packet Filter
12.On what OSI level is a Packet Filter operating - ANSWER Transport
(checks TCP/UDP prot numbers) and Network (checks source and
destination IP)
13.What is a circuit level gateway - ANSWER A firewall that conceals the true
identity of the protected network (hides IP) on the transport (4) layer
14.What does state in stateful mean? - ANSWER It refers to the connection
state between two computers
15.Why do we need the 5th layer on a Stateful Inspection - ANSWER In this
connection, the firewall is creating temporary rules per session to permit
communication (TCP) back to the sender.
16.What is a stateful inspection - ANSWER It reduces the amount of firewall
rules. Firewall vendors implemented a feature that only needs one rule to
allow the initial communication.
17.How do we protect the application level with a firewall - ANSWER With a
proxy server, Middle man or Layer 7 firewall
18.Can a packet filter firewall scan the packet content? - ANSWER No, a layer
7 or proxy is needed
,19.What is a IDS - ANSWER Intrusion Detection system. A system for
detecting attempting intrusion. Related to intrusion prevention systems (IPS)
that block suspected attacks
20.What is IPS - ANSWER Intrusion Prevention System that can block traffic
if a malicious anomaly is detected
21.Cyber Attack - Ransomware - ANSWER Encrypts data. Attacker sells the
key. Prevent with Virus scanner
22.Cyber Attack - Man in the Middle - ANSWER Eaves dropping. The data
flows thru the middle man. The attacker can stop/change the data
23.Which OSI layer is a router at - ANSWER Network (3)
24.TCP protocol is on what OSI layer - ANSWER Transport (4)
25.OSI layer 1 - ANSWER Physical Layer (Cable, Hubs, Repeaters)
26.OSI layer 2 - ANSWER Data Link Layer (Frame, Switch, PPP, Ethernet)
27.OSI layer 3 - ANSWER Network Layer (Moves packets, IP)
28.OSI layer 4 - ANSWER Transport Layer (TCP, end to end connection)
29.OSI Layer 5 - ANSWER Session Layer (API, Sockets, Synch and send to
port)
, 30.OSI layer 6 - ANSWER Presentation layer (Syntax and encryption layer,
SSL, SSH, JPEG)
31.OSI layer 7 - ANSWER Application layer (end user layer, http,
applications)
32.Network Typology point to point - ANSWER Two devices connect directly
33.Network Typology bus - ANSWER All devices connect to a central main
line
34.Network Typology Ring - ANSWER All devices have two connections and
form an endless ring
35.Network Typology Star - ANSWER All devices connect to a central point
36.Network Typology Tree - ANSWER Multiple devices connect together (on
a switch) and then the switches are connected with each other
37.Network Typology Mesh - ANSWER All devices connect directly to each
other
38.Network Typology Hybrid - ANSWER Multiple Network Typology within
the network
39.Cloud - where do I manage the OS Iaas or Paas? - ANSWER Iaas
Actual Exam Questions and Verified Answers |
Brand New Version
1. Which OSI layer is related to the IP protocol - ANSWER Network 3
2. Which OSI layer is organizing the bits over the physical layer between
devices in the same collision domain? - ANSWER Data Link 2 - They are
in the same Frame
3. Which OSI layer is a Switch at? - ANSWER Data Link 2
4. Which OSI layer is a WAP (Wireless Access Point) at? - ANSWER Data
Link 2
5. What is the CIA Triade Confidentiality? - ANSWER Protect from
unauthorized access and use, protecting data access in storage, transit and
process
6. 100m long Cat 5 cable supports speeds up to - ANSWER 100 Mb/s
7. 100m long Cat 5e cable supports speeds up to - ANSWER 1000 Mb/s or 1
Gb/s
8. 100m long Cat 6 cable supports speeds up to - ANSWER 10 Gb/s
9. 100m long Cat 6a cable supports speeds up to - ANSWER 10 Gb/s
,10.Does a firewall provide two way protection? - ANSWER Yes, it protects
ingress and egress data
11.Firewall that only checks the address label - ANSWER Packet Filter
12.On what OSI level is a Packet Filter operating - ANSWER Transport
(checks TCP/UDP prot numbers) and Network (checks source and
destination IP)
13.What is a circuit level gateway - ANSWER A firewall that conceals the true
identity of the protected network (hides IP) on the transport (4) layer
14.What does state in stateful mean? - ANSWER It refers to the connection
state between two computers
15.Why do we need the 5th layer on a Stateful Inspection - ANSWER In this
connection, the firewall is creating temporary rules per session to permit
communication (TCP) back to the sender.
16.What is a stateful inspection - ANSWER It reduces the amount of firewall
rules. Firewall vendors implemented a feature that only needs one rule to
allow the initial communication.
17.How do we protect the application level with a firewall - ANSWER With a
proxy server, Middle man or Layer 7 firewall
18.Can a packet filter firewall scan the packet content? - ANSWER No, a layer
7 or proxy is needed
,19.What is a IDS - ANSWER Intrusion Detection system. A system for
detecting attempting intrusion. Related to intrusion prevention systems (IPS)
that block suspected attacks
20.What is IPS - ANSWER Intrusion Prevention System that can block traffic
if a malicious anomaly is detected
21.Cyber Attack - Ransomware - ANSWER Encrypts data. Attacker sells the
key. Prevent with Virus scanner
22.Cyber Attack - Man in the Middle - ANSWER Eaves dropping. The data
flows thru the middle man. The attacker can stop/change the data
23.Which OSI layer is a router at - ANSWER Network (3)
24.TCP protocol is on what OSI layer - ANSWER Transport (4)
25.OSI layer 1 - ANSWER Physical Layer (Cable, Hubs, Repeaters)
26.OSI layer 2 - ANSWER Data Link Layer (Frame, Switch, PPP, Ethernet)
27.OSI layer 3 - ANSWER Network Layer (Moves packets, IP)
28.OSI layer 4 - ANSWER Transport Layer (TCP, end to end connection)
29.OSI Layer 5 - ANSWER Session Layer (API, Sockets, Synch and send to
port)
, 30.OSI layer 6 - ANSWER Presentation layer (Syntax and encryption layer,
SSL, SSH, JPEG)
31.OSI layer 7 - ANSWER Application layer (end user layer, http,
applications)
32.Network Typology point to point - ANSWER Two devices connect directly
33.Network Typology bus - ANSWER All devices connect to a central main
line
34.Network Typology Ring - ANSWER All devices have two connections and
form an endless ring
35.Network Typology Star - ANSWER All devices connect to a central point
36.Network Typology Tree - ANSWER Multiple devices connect together (on
a switch) and then the switches are connected with each other
37.Network Typology Mesh - ANSWER All devices connect directly to each
other
38.Network Typology Hybrid - ANSWER Multiple Network Typology within
the network
39.Cloud - where do I manage the OS Iaas or Paas? - ANSWER Iaas
