SCNS-EN : SCNS Tactical Perimeter Defense Exam

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SCNS-EN
SCNS Tactical Perimeter Defense
https://killexams.com/pass4sure/exam-detail/SCNS-EN
A. The MAC Address, the IP Address and the IP Protocol ID
B. The IP Address, the IP Protocol ID and a Port number
C. The MAC Address and the IP Protocol ID
D. The MAC Address, the IP Protocol ID and a Port number
E. The Ethertype and a Port number
Answer: B
QUESTION: 224
In an ICMP Message, what is the function of
the first eight bits?
A. To define the source port number
B. To define the type
C. To define the destination port number
D. To define the IP Version
E. To define the upper layer protocol
Answer: B
QUESTION: 225
You are introducing a co-worker to the security systems in place in your organization. Early in
the discussion you begin talking about the network, and how it is implemented. You decide to
run a packet capture to identify different aspects of network traffic for your co-worker. In the
packet capture you are able to identify Protocol IDs. Which of the following is the IP Protocol ID
for UDP?
A. Protocol ID 51
B. Protocol ID 21
C. Protocol ID 6
D. Protocol ID 17
E. Protocol ID 11
Answer: D
QUESTION: 226
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In order to properly manage the network traffic in your organization, you need a complete
understanding of protocols and networking models. In regards to the 7-layer OSI model, what is
the function of the Network Layer?
A. The Network layer allows two applications on different computers to establish, use, and end a
session. This layer establishes dialog control between the two computers in a session, regulating
which side transmits, plus when and how long it transmits.
B. The Network layer manages logical addresses. It also determines the route from the source to
the destination computer and manages traffic problems, such as routing, and controlling the
congestion of data packets.
C. The Network layer packages raw bits from the Physical (Layer 1) layer into frames (structured
packets for data). Physical addressing (as opposed to network or logical addressing) defines how
responsible for transferring frames from
devices are addressed at the data link layer. This layer is
waits for an acknowledgment
one computer to another, without errors. After sending a frame, it
from the receiving computer.
D. The Network layer transmits bits from one computer to another and regulates the transmission
of a stream of bits over a physical medium. For example, this layer defines how the cable is
attached to the network adapter and what transmission technique is used to send data over the
cable.
E. The Network layer handles error recognition and recovery. It also repackages long messages,
when necessary, into small packets for transmission and, at the receiving end, rebuilds packets
into the original message. The corresponding Network layer at the receiving end also sends
receipt acknowledgments.
Answer: B
QUESTION: 227
You are using Network Monitor to capture some traffic for later analysis. When you do begin to
look at your captured data, you examine the TCP traffic you captured. In a TCP Header, what is
the function of the first sixteen bits?
A. To define the type
B. To define the IP Version
C. To define the destination port number
D. To define the upper layer protocol
E. To define the source port number
Answer: E
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QUESTION: 228
If you configure an access-list to block the following networks, what are you trying to protect
against? Network 127.0.0.0/8, Network 0.0.0.0\0, Network 10.0.0.0\8, Network 172.16.0.0\16,
and Network 168.0.0\16.
A. You are trying to protect against hijacking
B. You are trying to protect against spoofing
C. You are trying to protect against sniffing
D. You are trying to protect against splicing
E. You are trying to protect against capturing
Answer: B
QUESTION: 229
You are a host in a network segment that has IP addresses in the range of
168.16.1~192.168.31.254. You need to create an access control list that will filter your segment
of addresses. Which of the following is the wildcard mask that will be used to filter your network
segment?
A. 10.0.16.1/20
B. 0.0.16.254
C. 255.240.0.0
D. 0.0.240.0
E. 0.0.15.255
Answer: E
QUESTION: 230
The exhibit represents a simple routed network. Node 7 is a Windows NT 4.0 Workstation that
establishes a TCP communication with Node 10, a Windows 2000 Professional host. The routers
are Cisco 2500 series running IOS 11.2. While working at Node 10, you run a packet capture.
When Node 10 receives a packet sent by Node 7, what will the capture reveal is the source MAC
address?
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A. Interface for Node 7
B. Interface E0 of Router A
C. Interfaces for both Nodes 7 and E0
D. Interface E0 of Router D
E. Interface for Node 10
Answer: D
QUESTION: 231
During a network capture, using Wireshark, you capture some ICMP traffic for analysis. In an
ICMP Message, what is the function of the first eight bits?
A. To define the source port number
B. To define the type
C. To define the destination port number
D. To define the IP Version
E. To define the upper layer protocol
Answer: B
QUESTION: 232
A router has two active Ethernet interfaces. Interface E0 is connected to network 10.10.0.0/16
while Interface E1 is connected to network 10.11.0.0/16. You are configuring access control lists
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to manage specific access, which is disallowed on these segments. The configuration of the lists
are as follows:
router(config)#access-list 123 deny tcp 10.11.0.0 0.0.255.255 10.10.0.0 0.0.255.255 eq 20
router(config)#access-list 123 deny tcp 10.11.0.0 0.0.255.255 10.10.0.0 0.0.255.255 eq 21
router(config)#access-list 123 deny tcp 10.10.0.0 0.0.255.255 10.11.0.0 0.0.255.255 eq 20
router(config)#access-list 123 deny tcp 10.10.0.0 0.0.255.255 10.11.0.0 0.0.255.255 eq 21
router(config)#access-list 123 permit tcp 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255
router(config)#Interface Ethernet 0
router(config-if)#ip access-group 123 in router(config-if)#Interface Ethernet 1 router(config-
if)#ip access-group 123 in Based on the above list configuration, which of the following
statements is true on the router?
A. All packets will be dropped
B. All packets that match the deny statements will be forwarded to the console port
C. All packets that do not match the deny statements will be allowed
D. An Access List cannot simultaneously be implemented upon two or more interfaces
E. We do not know if this is a standard or extended access list, therefore there is not enough
information.
Answer: A


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