SANS 401 GSEC Written Exam
Questions Correctly Answered.
Network Topology - CORRECT ANSWER The Physical/Logical shape of a network
Logical Topology - CORRECT ANSWER Gives the description for the physical layout, shows VLAN's and
where they are placed on the physical topology
Trunk Port - CORRECT ANSWER Connects packets that travel to all VLAN's on a switch
Baseband Systems - CORRECT ANSWER Transmits one signal on the medium (fiber, copper, etc)
Broadband - CORRECT ANSWER Form of multiplexing to join multiple signals on a medium
Ethernet - CORRECT ANSWER Designed as baseband system that can be used in multiplexing
CSMA/CD - CORRECT ANSWER Carrier Sense Multiple Access/ Collision Detection
Unicast - CORRECT ANSWER Broadcast for a single device
Multicast - CORRECT ANSWER Broadcast for a specific group or multiple devices
Broadcast - CORRECT ANSWER Message for everyone to receive and process
Hub - CORRECT ANSWER Broadcasts packets to every single port
Switch - CORRECT ANSWER Broadcasts packets to device found on a singular port
,Content Addressable Memory (CAM) - CORRECT ANSWER Is a table that contains the MAC address and
port associated to that MAC Address
Virtual LAN (VLAN) - CORRECT ANSWER Splitting a switch in which certain ports can only talk to certain
ports (Segment networks within a switch)
Multiprotocol Label Switching (MPLS) - CORRECT ANSWER A different way of switching packets that can
be used on a dedicated line
802.1x - CORRECT ANSWER Network Access Control that is a layer 2 authentication (Credentialed
Question of 2FA)
A security appliance should be set in place when - CORRECT ANSWER There is a change in trust level in
the network
Protocol - CORRECT ANSWER is an agreement or rules of engagement for how computer networks
communicate
OSI Protocol Stack (7) - CORRECT ANSWER Layer 7) Application
Layer 6) Presentation
Layer 5) Session
Layer 4) Transport
Layer 3) Network
Layer 2) Data Link
Layer 1) Physical
Application Layer 7 OSI Stack - CORRECT ANSWER Browsers, FTP, HTTP, SCP
Presentation Layer 6 OSI Stack - CORRECT ANSWER Makes data presentable to the application or user
(ASCII)
, Session Layer 5 OSI Stack - CORRECT ANSWER Handles the establishment/maintenance of connections
between systems
Transport Layer 4 OSI Stack - CORRECT ANSWER Determines that application the packet should be sent
to through port numbers (Web on 80,443)
Network Layer 3 OSI Stack - CORRECT ANSWER Moving packets from one network to another network,
uses logical addressing instead of physical addressing
Data Link Layer 2 OSI Stack - CORRECT ANSWER Takes a packet and frames it suitable for transmission
Physical Layer 1 OSI Stack - CORRECT ANSWER Network cable, electromagnetic radiation
TCP/IP Protocol Stack (4) - CORRECT ANSWER Layer 4) Application
Layer 3) Transport (TCP/UDP)
Layer 2) Internet (IP)
Layer 1) Network
Network Address in: 10.1.2.0/24 Subnet - CORRECT ANSWER 10.1.2.0
Broadcast Address in: 10.1.2.0/24 Subnet - CORRECT ANSWER 10.1.2.255
Class A CIDR Addressing (Mask, IP Range) - CORRECT ANSWER N.H.H.H, 255.0.0.0 - 1-127
10.0.0.0/8
16.7 Million IP's
Class B CIDR Addressing (Mask, IP Range) - CORRECT ANSWER N.N.H.H, 255.255.0.0 - 128-191
172.16.0.0/16
65,536 IP's
Questions Correctly Answered.
Network Topology - CORRECT ANSWER The Physical/Logical shape of a network
Logical Topology - CORRECT ANSWER Gives the description for the physical layout, shows VLAN's and
where they are placed on the physical topology
Trunk Port - CORRECT ANSWER Connects packets that travel to all VLAN's on a switch
Baseband Systems - CORRECT ANSWER Transmits one signal on the medium (fiber, copper, etc)
Broadband - CORRECT ANSWER Form of multiplexing to join multiple signals on a medium
Ethernet - CORRECT ANSWER Designed as baseband system that can be used in multiplexing
CSMA/CD - CORRECT ANSWER Carrier Sense Multiple Access/ Collision Detection
Unicast - CORRECT ANSWER Broadcast for a single device
Multicast - CORRECT ANSWER Broadcast for a specific group or multiple devices
Broadcast - CORRECT ANSWER Message for everyone to receive and process
Hub - CORRECT ANSWER Broadcasts packets to every single port
Switch - CORRECT ANSWER Broadcasts packets to device found on a singular port
,Content Addressable Memory (CAM) - CORRECT ANSWER Is a table that contains the MAC address and
port associated to that MAC Address
Virtual LAN (VLAN) - CORRECT ANSWER Splitting a switch in which certain ports can only talk to certain
ports (Segment networks within a switch)
Multiprotocol Label Switching (MPLS) - CORRECT ANSWER A different way of switching packets that can
be used on a dedicated line
802.1x - CORRECT ANSWER Network Access Control that is a layer 2 authentication (Credentialed
Question of 2FA)
A security appliance should be set in place when - CORRECT ANSWER There is a change in trust level in
the network
Protocol - CORRECT ANSWER is an agreement or rules of engagement for how computer networks
communicate
OSI Protocol Stack (7) - CORRECT ANSWER Layer 7) Application
Layer 6) Presentation
Layer 5) Session
Layer 4) Transport
Layer 3) Network
Layer 2) Data Link
Layer 1) Physical
Application Layer 7 OSI Stack - CORRECT ANSWER Browsers, FTP, HTTP, SCP
Presentation Layer 6 OSI Stack - CORRECT ANSWER Makes data presentable to the application or user
(ASCII)
, Session Layer 5 OSI Stack - CORRECT ANSWER Handles the establishment/maintenance of connections
between systems
Transport Layer 4 OSI Stack - CORRECT ANSWER Determines that application the packet should be sent
to through port numbers (Web on 80,443)
Network Layer 3 OSI Stack - CORRECT ANSWER Moving packets from one network to another network,
uses logical addressing instead of physical addressing
Data Link Layer 2 OSI Stack - CORRECT ANSWER Takes a packet and frames it suitable for transmission
Physical Layer 1 OSI Stack - CORRECT ANSWER Network cable, electromagnetic radiation
TCP/IP Protocol Stack (4) - CORRECT ANSWER Layer 4) Application
Layer 3) Transport (TCP/UDP)
Layer 2) Internet (IP)
Layer 1) Network
Network Address in: 10.1.2.0/24 Subnet - CORRECT ANSWER 10.1.2.0
Broadcast Address in: 10.1.2.0/24 Subnet - CORRECT ANSWER 10.1.2.255
Class A CIDR Addressing (Mask, IP Range) - CORRECT ANSWER N.H.H.H, 255.0.0.0 - 1-127
10.0.0.0/8
16.7 Million IP's
Class B CIDR Addressing (Mask, IP Range) - CORRECT ANSWER N.N.H.H, 255.255.0.0 - 128-191
172.16.0.0/16
65,536 IP's
