L'avènement de la certification CompTIA pratique d'examen SY0-401 JK0-019 questions et réponses

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Code d'Examen: SY0-401
Nom d'Examen: CompTIA (CompTIA Security+ Certification)
Questions et réponses: 512 Q&As

Code d'Examen: JK0-019
Nom d'Examen: CompTIA (CompTIA Network+ Certification Exam)
Questions et réponses: 637 Q&As

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NO.1 Jane has recently implemented a new network design at her organization and wishes to
passively identify security issues with the new network. Which of the following should Jane perform?
A. Vulnerability assessment
B. Black box testing
C. White box testing
D. Penetration testing
Answer: A

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NO.2 Pete needs to open ports on the firewall to allow for secure transmission of files. Which of
the following ports should be opened on the firewall?
A. TCP 23
B. UDP 69
C. TCP 22
D. TCP 21
Answer: C

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NO.3 Which of the following is an application security coding problem?
A. Error and exception handling
B. Patch management
C. Application hardening
D. Application fuzzing
Answer: A

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NO.4 Configuring the mode, encryption methods, and security associations are part of which of the
following?
A. IPSec
B. Full disk encryption
C. 802.1x
D. PKI
Answer: A

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NO.5 Which of the following is being tested when a company's payroll server is powered off for
eight hours?
A. Succession plan
B. Business impact document
C. Continuity of operations plan
D. Risk assessment plan
Answer: C

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NO.6 Which of the following assessments would Pete, the security administrator, use to actively test
that an application's security controls are in place?
A. Code review
B. Penetration test
C. Protocol analyzer
D. Vulnerability scan
Answer: B

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NO.7 Matt, an administrator, notices a flood fragmented packet and retransmits from an email
server. After disabling the TCP offload setting on the NIC, Matt sees normal traffic with packets
flowing in sequence again. Which of the following utilities was he MOST likely using to view this
issue?
A. Spam filter
B. Protocol analyzer
C. Web application firewall
D. Load balancer
Answer: B

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NO.8 Pete, a developer, writes an application. Jane, the security analyst, knows some things about
the overall application but does not have all the details. Jane needs to review the software before it
is released to production. Which of the following reviews should Jane conduct?
A. Gray Box Testing
B. Black Box Testing
C. Business Impact Analysis
D. White Box Testing
Answer: A

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Dernières CompTIA JK0-019 examen pratique questions et réponses

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Code d'Examen: JK0-019
Nom d'Examen: CompTIA (CompTIA Network+ Certification Exam)
Questions et réponses: 637 Q&As

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NO.1 Which of the following would Joe, a technician, configure to modify the time a device will hold an IP
address provided through DHCP?
A. DNS suffixes
B. Leases
C. Static IP addressing
D. Reservations
Answer: B

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NO.2 Joe, a network technician, is tasked with installing a router and firewall to get an office working with
Internet access.
Which of the following features MUST be configured to allow sharing of a single public IP address?
A. QoS
B. POP3
C. PAT
D. SMTP
Answer: C

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NO.3 Two duplicate pieces of equipment can be used in conjunction for which of the following purposes?
(Select TWO)
A. High availability
B. Fault tolerance
C. Reduce latency
D. Wi-MAX
E. CARP
Answer: A,B

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NO.4 The location that the local network connection ends and the ISP responsibility begins is known as the:
A. Access point.
B. Default gateway.
C. IDF connection.
D. Demarcation point.
Answer: D

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NO.5 Which of the following is an example of two-factor authentication?
A. A username and PIN
B. A username and password
C. A username, password, finger print scan, and smart card
D. A username, password, and key fob number
Answer: D

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NO.6 Sandy, the network administrator, has funding to do a major upgrade of the company s LAN. This
upgrade is currently in the planning stage, and Sandy still needs to determine the network requirements,
bottlenecks, and any future upgrades in mind. Which of the following is the FIRST step in the planning
process?
A. Conduct a vulnerability scan
B. Establish a network baseline
C. Conduct traffic analysis
D. Conduct a risk assessment
Answer: B

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NO.7 Which of the following network scanners detects and sends out alerts for malicious network activity?
A. Packet sniffers
B. IDS
C. Port scanners
D. IPS
Answer: B

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NO.8 Which of the following should Joe, a technician, do FIRST when setting up a SOHO network?
A. Set up an account with an Internet service provider.
B. Create a list of requirements and constraints.
C. Arrange a domain name with a suitable registrar.
D. Choose the correct operating system version.
Answer: B

CompTIA   JK0-019 examen   JK0-019 examen

NO.9 Which of the following sizes is the fixed cell length in ATM?
A. 8 bytes
B. 53 bytes
C. 64 kilobytes
D. 128 kilobytes
Answer: B

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NO.10 A company has only three laptops that connect to their wireless network. The company is currently
using WEP encryption on their wireless network. They have noticed unauthorized connections on their
WAP and want to secure their wireless connection to prevent this.
Which of the following security measures would BEST secure their wireless network? (Select TWO).
A. Change the encryption method to WPA
B. Limit the DHCP scope to only have three addresses total
C. Enable the SSID broadcast
D. Enable and configure MAC filtering
E. Change the broadcast channel to a less commonly used channel
Answer: A,D

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NO.11 Joe, a user, is unable to reach websites, but is able to ping several Internet IPv4 addresses. Which of
the following is the MOST likely problem?
A. Incorrect subnet mask
B. Incorrect DNS
C. Missing default gateway
D. Incorrect IPv6 address
Answer: B

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NO.12 Sandy, a network administrator, wants to be able to block all already known malicious activity.
Which of the following would allow her to perform this activity.?
A. Behavioral Based IDS
B. Signature Based IDS
C. Behavioral Based IPS
D. Signature Based IPS
Answer: D

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NO.13 Which of the following network appliances would facilitate an even amount of traffic hitting each web
server?
A. Load balancer
B. VPN concentrator
C. Proxy server
D. Content filter
Answer: A

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NO.14 Which of the following connector types would Sandy, a network technician, use to connect a serial
cable?
A. RJ-11
B. BNC
C. LC
D. DB-9
Answer: D

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NO.15 Which of the following TCP/IP and OSI model layers retransmits a TCP packet if it is not received
successfully at its destination?
A. The transport OSI model layer and the transport TCP/IP model layer
B. The transport OSI model layer and the Internet TCP/IP model layer
C. The network OSI model layer and the transport TCP/IP model layer
D. The network OSI model layer and the Internet TCP/IP model layer
Answer: A

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NO.16 Which of the following network topologies, when a single machine's cable breaks, would only affect one
network device and not the rest of the network?
A. Bus
B. Peer-to-peer
C. Ring
D. Star
Answer: D

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NO.17 Joe, a technician, is configuring ports on a switch. He turns off auto-negotiation and sets the port
speed to 1000 Mbps. A user s PC is no longer able to access the network.
Which of the following is MOST likely the problem?
A. The user s NIC does not support 1Gbps
B. The switch is not compatible with 1000Mbps.
C. The user's NIC does not support 100Mbps.
D. Joe needs to restart the DNS server.
Answer: A

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NO.18 Which of the following is a form of encrypting packets for safe, secure data transmission within a
network?
A. RAS
B. PPTP
C. IPSec
D. ICA
Answer: C

CompTIA   JK0-019   JK0-019

NO.19 Sandy, a technician, wants to limit access to a wireless network to company owned laptops, but does
not want to use an encryption method. Which of the following methods would be BEST to accomplish
this?
A. MAC filtering
B. SSL VPN
C. PPPoE
D. WPA Enterprise
Answer: A

CompTIA   certification JK0-019   JK0-019 examen   JK0-019

NO.20 Sandy, a technician, installs a new WAP and users are able to connect; however, users cannot access
the Internet. Which of the following is the MOST likely cause of the problem?
A. The signal strength has been degraded and latency is increasing hop count.
B. An incorrect subnet mask has been entered in the WAP configuration.
C. The signal strength has been degraded and packets are being lost.
D. Users have specified the wrong encryption type and routes are being rejected.
Answer: B

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Code d'Examen: JK0-019
Nom d'Examen: CompTIA (CompTIA Network+ Certification Exam)
Questions et réponses: 637 Q&As

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NO.1 Sandy, a technician, installs a new WAP and users are able to connect; however, users cannot access
the Internet. Which of the following is the MOST likely cause of the problem?
A. The signal strength has been degraded and latency is increasing hop count.
B. An incorrect subnet mask has been entered in the WAP configuration.
C. The signal strength has been degraded and packets are being lost.
D. Users have specified the wrong encryption type and routes are being rejected.
Answer: B

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NO.2 Which of the following TCP/IP and OSI model layers retransmits a TCP packet if it is not received
successfully at its destination?
A. The transport OSI model layer and the transport TCP/IP model layer
B. The transport OSI model layer and the Internet TCP/IP model layer
C. The network OSI model layer and the transport TCP/IP model layer
D. The network OSI model layer and the Internet TCP/IP model layer
Answer: A

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NO.3 Which of the following connector types would Sandy, a network technician, use to connect a serial
cable?
A. RJ-11
B. BNC
C. LC
D. DB-9
Answer: D

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NO.4 Which of the following is a form of encrypting packets for safe, secure data transmission within a
network?
A. RAS
B. PPTP
C. IPSec
D. ICA
Answer: C

CompTIA   certification JK0-019   JK0-019   JK0-019

NO.5 Which of the following sizes is the fixed cell length in ATM?
A. 8 bytes
B. 53 bytes
C. 64 kilobytes
D. 128 kilobytes
Answer: B

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NO.6 Which of the following network topologies, when a single machine's cable breaks, would only affect one
network device and not the rest of the network?
A. Bus
B. Peer-to-peer
C. Ring
D. Star
Answer: D

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NO.7 Which of the following should Joe, a technician, do FIRST when setting up a SOHO network?
A. Set up an account with an Internet service provider.
B. Create a list of requirements and constraints.
C. Arrange a domain name with a suitable registrar.
D. Choose the correct operating system version.
Answer: B

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NO.8 Which of the following network scanners detects and sends out alerts for malicious network activity?
A. Packet sniffers
B. IDS
C. Port scanners
D. IPS
Answer: B

CompTIA examen   JK0-019   JK0-019

NO.9 Joe, a network technician, is tasked with installing a router and firewall to get an office working with
Internet access.
Which of the following features MUST be configured to allow sharing of a single public IP address?
A. QoS
B. POP3
C. PAT
D. SMTP
Answer: C

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NO.10 Joe, a technician, is configuring ports on a switch. He turns off auto-negotiation and sets the port
speed to 1000 Mbps. A user s PC is no longer able to access the network.
Which of the following is MOST likely the problem?
A. The user s NIC does not support 1Gbps
B. The switch is not compatible with 1000Mbps.
C. The user's NIC does not support 100Mbps.
D. Joe needs to restart the DNS server.
Answer: A

CompTIA   certification JK0-019   certification JK0-019   JK0-019 examen   JK0-019 examen

NO.11 Sandy, a technician, wants to limit access to a wireless network to company owned laptops, but does
not want to use an encryption method. Which of the following methods would be BEST to accomplish
this?
A. MAC filtering
B. SSL VPN
C. PPPoE
D. WPA Enterprise
Answer: A

CompTIA   JK0-019   JK0-019 examen

NO.12 Two duplicate pieces of equipment can be used in conjunction for which of the following purposes?
(Select TWO)
A. High availability
B. Fault tolerance
C. Reduce latency
D. Wi-MAX
E. CARP
Answer: A,B

CompTIA examen   JK0-019   JK0-019   JK0-019

NO.13 Joe, a user, is unable to reach websites, but is able to ping several Internet IPv4 addresses. Which of
the following is the MOST likely problem?
A. Incorrect subnet mask
B. Incorrect DNS
C. Missing default gateway
D. Incorrect IPv6 address
Answer: B

CompTIA   JK0-019   certification JK0-019   JK0-019   certification JK0-019

NO.14 Sandy, the network administrator, has funding to do a major upgrade of the company s LAN. This
upgrade is currently in the planning stage, and Sandy still needs to determine the network requirements,
bottlenecks, and any future upgrades in mind. Which of the following is the FIRST step in the planning
process?
A. Conduct a vulnerability scan
B. Establish a network baseline
C. Conduct traffic analysis
D. Conduct a risk assessment
Answer: B

CompTIA   JK0-019 examen   JK0-019   JK0-019

NO.15 Sandy, a network administrator, wants to be able to block all already known malicious activity.
Which of the following would allow her to perform this activity.?
A. Behavioral Based IDS
B. Signature Based IDS
C. Behavioral Based IPS
D. Signature Based IPS
Answer: D

CompTIA   certification JK0-019   JK0-019 examen   JK0-019

NO.16 A company has only three laptops that connect to their wireless network. The company is currently
using WEP encryption on their wireless network. They have noticed unauthorized connections on their
WAP and want to secure their wireless connection to prevent this.
Which of the following security measures would BEST secure their wireless network? (Select TWO).
A. Change the encryption method to WPA
B. Limit the DHCP scope to only have three addresses total
C. Enable the SSID broadcast
D. Enable and configure MAC filtering
E. Change the broadcast channel to a less commonly used channel
Answer: A,D

CompTIA   certification JK0-019   JK0-019   JK0-019   JK0-019

NO.17 The location that the local network connection ends and the ISP responsibility begins is known as the:
A. Access point.
B. Default gateway.
C. IDF connection.
D. Demarcation point.
Answer: D

CompTIA examen   JK0-019 examen   JK0-019 examen

NO.18 Which of the following would Joe, a technician, configure to modify the time a device will hold an IP
address provided through DHCP?
A. DNS suffixes
B. Leases
C. Static IP addressing
D. Reservations
Answer: B

CompTIA   JK0-019 examen   certification JK0-019   JK0-019

NO.19 Which of the following is an example of two-factor authentication?
A. A username and PIN
B. A username and password
C. A username, password, finger print scan, and smart card
D. A username, password, and key fob number
Answer: D

CompTIA   JK0-019   JK0-019

NO.20 Which of the following network appliances would facilitate an even amount of traffic hitting each web
server?
A. Load balancer
B. VPN concentrator
C. Proxy server
D. Content filter
Answer: A

CompTIA   JK0-019   JK0-019 examen

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