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SY0-401 - Section A (Network Security)

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Security+ SY0-401 Quiz sobre SY0-401 - Section A (Network Security), criado por jdrad01-junk em 24-11-2014.
jdrad01-junk
Quiz por jdrad01-junk, atualizado more than 1 year ago
jdrad01-junk
Criado por jdrad01-junk aproximadamente 10 anos atrás
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Resumo de Recurso

Questão 1

Questão
Which of the following means of wireless authentication is easily vulnerable to spoofing?
Responda
  • MAC Filtering
  • WPA - LEAP
  • WPA - PEAP
  • Enabled SSID

Questão 2

Questão
Which of the following implementation steps would be appropriate for a public wireless hot- spot?
Responda
  • Reduce power level
  • Disable SSID broadcast
  • Open system authentication
  • MAC filter

Questão 3

Questão
Which of the following controls would allow a company to reduce the exposure of sensitive systems from unmanaged devices on internal networks?
Responda
  • 802.1x
  • Data encryption
  • Password strength
  • BGP

Questão 4

Questão
A network administrator has been tasked with securing the WLAN. Which of the following cryptographic products would be used to provide the MOST secure environment for the WLAN?
Responda
  • WPA2 CCMP
  • WPA
  • WPA with MAC filtering
  • WPA2 TKIP

Questão 5

Questão
A security administrator is segregating all web-facing server traffic from the internal network and restricting it to a single interface on a firewall. Which of the following BEST describes this new network?
Responda
  • VLAN
  • Subnet
  • VPN
  • DMZ

Questão 6

Questão
Which of the following network design elements allows for many internal devices to share one public IP address?
Responda
  • DNAT
  • PAT
  • DNS
  • DMZ

Questão 7

Questão
A company determines a need for additional protection from rogue devices plugging into physical ports around the building. Which of the following provides the highest degree of protection from unauthorized wired network access?
Responda
  • Intrusion Prevention Systems
  • MAC filtering
  • Flood guards
  • 802.1x

Questão 8

Questão
Due to hardware limitation, a technician must implement a wireless encryption algorithm that uses the RC4 protocol. Which of the following is a wireless encryption solution that the technician should implement while ensuring the STRONGEST level of security?
Responda
  • WPA2-AES
  • 802.11ac
  • WPA-TKIP
  • WEP

Questão 9

Questão
An administrator has a network subnet dedicated to a group of users. Due to concerns regarding data and network security, the administrator desires to provide network access for this group only. Which of the following would BEST address this desire?
Responda
  • Install a proxy server between the users' computers and the switch to filter inbound network traffic.
  • Block commonly used ports and forward them to higher and unused port numbers.
  • Configure the switch to allow only traffic from computers based upon their physical address.
  • Install host-based intrusion detection software to monitor incoming DHCP Discover requests.

Questão 10

Questão
A small company can only afford to buy an all-in-one wireless router/switch. The company has 3 wireless BYOD users and 2 web servers without wireless access. Which of the following should the company configure to protect the servers from the user devices? (Select TWO).
Responda
  • Deny incoming connections to the outside router interface.
  • Change the default HTTP port
  • Implement EAP-TLS to establish mutual authentication
  • Disable the physical switch ports
  • Create a server VLAN
  • Create an ACL to access the server

Questão 11

Questão
An organization does not have adequate resources to administer its large infrastructure. A security administrator wishes to combine the security controls of some of the network devices in the organization. Which of the following methods would BEST accomplish this goal?
Responda
  • Unified Threat Management
  • Virtual Private Network
  • Single sign on
  • Role-based management

Questão 12

Questão
Which of the following would allow the organization to divide a Class C IP address range into several ranges?
Responda
  • Which of the following would allow the organization to divide a Class C IP address range into several ranges?
  • Virtual LANs
  • NAT
  • Subnetting

Questão 13

Questão
A network administrator wants to block both DNS requests and zone transfers coming from outside IP addresses. The company uses a firewall which implements an implicit allow and is currently configured with the following ACL applied to its external interface. PERMIT TCP ANY ANY 80 PERMIT TCP ANY ANY 443 Which of the following rules would accomplish this task? (Select TWO).
Responda
  • Change the firewall default settings so that it implements an implicit deny
  • Apply the current ACL to all interfaces of the firewall
  • Remove the current ACL
  • Add the following ACL at the top of the current ACL DENY TCP ANY ANY 53
  • Add the following ACL at the bottom of the current ACL DENY ICMP ANY ANY 53
  • Add the following ACL at the bottom of the current ACL DENY IP ANY ANY 53

Questão 14

Questão
A security administrator wishes to increase the security of the wireless network. Which of the following BEST addresses this concern?
Responda
  • Change the encryption from TKIP-based to CCMP-based.
  • Set all nearby access points to operate on the same channel.
  • Configure the access point to use WEP instead of WPA2.
  • Enable all access points to broadcast their SSIDs.

Questão 15

Questão
Sally, a sales manager, successfully connected her company-issued smartphone to the wireless network in her office without supplying a username/password combination. Upon disconnecting from the wireless network, she attempted to connect her personal tablet computer to the same wireless network and could not connect. Which of the following is MOST likely the reason?
Responda
  • The company wireless is using a MAC filter.
  • The company wireless has SSID broadcast disabled.
  • The company wireless is using WEP.
  • The company wireless is using WPA2.

Questão 16

Questão
A network technician is on the phone with the system administration team. Power to the server room was lost and servers need to be restarted. The DNS services must be the first to be restarted. Several machines are powered off. Assuming each server only provides one service, which of the following should be powered on FIRST to establish DNS services?
Responda
  • Bind server
  • Apache server
  • Exchange server
  • RADIUS server

Questão 17

Questão
A security technician at a small business is worried about the Layer 2 switches in the network suffering from a DoS style attack caused by staff incorrectly cabling network connections between switches. Which of the following will BEST mitigate the risk if implemented on the switches?
Responda
  • Spanning tree
  • Flood guards
  • Access control lists
  • Syn flood

Questão 18

Questão
An administrator wants to establish a WiFi network using a high gain directional antenna with a narrow radiation pattern to connect two buildings separated by a very long distance. Which of the following antennas would be BEST for this situation?
Responda
  • Dipole
  • Yagi
  • Sector
  • Omni

Questão 19

Questão
A security analyst is reviewing firewall logs while investigating a compromised web server. The following ports appear in the log: 22, 25, 445, 1433, 3128, 3389, 6667 Which of the following protocols was used to access the server remotely?
Responda
  • LDAP
  • HTTP
  • RDP
  • HTTPS

Questão 20

Questão
An organization does not want the wireless network name to be easily discovered. Which of the following software features should be configured on the access points?
Responda
  • SSID broadcast
  • MAC filter
  • WPA2
  • Antenna placement

Questão 21

Questão
A network engineer is setting up a network for a company. There is a BYOD policy for the employees so that they can connect their laptops and mobile devices. Which of the following technologies should be employed to separate the administrative network from the network in which all of the employees' devices are connected?
Responda
  • VPN
  • VLAN
  • WPA2
  • MAC filtering

Questão 22

Questão
When performing the daily review of the system vulnerability scans of the network Bob, the administrator, noticed several security related vulnerabilities with an assigned vulnerability identification number. Bob researches the assigned vulnerability identification number from the vendor website. Bob proceeds with applying the recommended solution for identified vulnerability. Which of the following is the type of vulnerability described?
Responda
  • Network based
  • IDS
  • Signature based
  • Host based

Questão 23

Questão
While configuring a new access layer switch, the administrator, Bob, was advised that he needed to make sure that only devices authorized to access the network would be permitted to login and utilize resources. Which of the following should the administrator implement to ensure this happens?
Responda
  • Log Analysis
  • VLAN Management
  • Network separation
  • 802.1x

Questão 24

Questão
Results from a vulnerability analysis indicate that all enabled virtual terminals on a router can be accessed using the same password. The company's network device security policy mandates that at least one virtual terminal have a different password than the other virtual terminals. Which of the following sets of commands would meet this requirement?
Responda
  • line vty 0 6 P@s5W0Rd password line vty 7 Qwer++!Y password
  • line console 0 password password line vty 0 4 password P@s5W0Rd
  • line vty 0 3 password Qwer++!Y line vty 4 password P@s5W0Rd
  • line vty 0 3 password Qwer++!Y line console 0 password P@s5W0Rd

Questão 25

Questão
After entering the following information into a SOHO wireless router, a mobile device's user reports being unable to connect to the network: PERMIT 0A: D1: FA. B1: 03: 37 DENY 01: 33: 7F: AB: 10: AB Which of the following is preventing the device from connecting?
Responda
  • WPA2-PSK requires a supplicant on the mobile device.
  • Hardware address filtering is blocking the device.
  • TCP/IP Port filtering has been implemented on the SOHO router.
  • IP address filtering has disabled the device from connecting.

Questão 26

Questão
Which of the following MOST interferes with network-based detection techniques?
Responda
  • Mime-encoding
  • SSL
  • FTP
  • Anonymous email accounts

Questão 27

Questão
Thomas, a network administrator, is capturing packets on the network and notices that a large amount of the traffic on the LAN is SIP and RTP protocols. Which of the following should he do to segment that traffic from the other traffic?
Responda
  • Connect the WAP to a different switch.
  • Create a voice VLAN.
  • Create a DMZ.
  • Set the switch ports to 802.1q mode.

Questão 28

Questão
Which of the following is BEST used as a secure replacement for TELNET?
Responda
  • HTTPS
  • HMAC
  • GPG
  • SSH

Questão 29

Questão
Which of the following is a difference between TFTP and FTP?
Responda
  • TFTP is slower than FTP.
  • TFTP is more secure than FTP.
  • TFTP utilizes TCP and FTP uses UDP.
  • TFTP utilizes UDP and FTP uses TCP.

Questão 30

Questão
Suspicious traffic without a specific signature was detected. Under further investigation, it was determined that these were false indicators. Which of the following security devices needs to be configured to disable future false alarms?
Responda
  • Signature based IPS
  • Signature based IDS
  • Application based IPS
  • Anomaly based IDS

Questão 31

Questão
Alice, a security administrator, has observed repeated attempts to break into a server. Which of the following is designed to stop an intrusion on a specific server?
Responda
  • HIPS
  • NIDS
  • HIDS
  • NIPS

Questão 32

Questão
Which of the following allows Thomas, a security technician, to provide the MOST secure wireless implementation?
Responda
  • Implement WPA
  • Disable SSID
  • Adjust antenna placement
  • Implement WEP

Questão 33

Questão
Thomas, the compliance manager, wants to meet regulations. Thomas would like certain ports blocked only on all computers that do credit card transactions. Which of the following should Thomas implement to BEST achieve this goal?
Responda
  • A host-based intrusion prevention system
  • A host-based firewall
  • Antivirus update system
  • A network-based intrusion detection system

Questão 34

Questão
Thomas, the system administrator, wishes to monitor and limit users' access to external websites. Which of the following would BEST address this?
Responda
  • Block all traffic on port 80.
  • Implement NIDS.
  • Use server load balancers.
  • Install a proxy server.

Questão 35

Questão
Sara, the security administrator, must configure the corporate firewall to allow all public IP addresses on the internal interface of the firewall to be translated to one public IP address on the external interface of the same firewall. Which of the following should Sara configure?
Responda
  • PAT
  • NAP
  • DNAT
  • NAC

Questão 36

Questão
Thomas 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?
Responda
  • TCP 23
  • UDP 69
  • TCP 22
  • TCP 21

Questão 37

Questão
Which statement is TRUE about the operation of a packet sniffer?
Responda
  • It can only have one interface on a management network.
  • They are required for firewall operation and stateful inspection.
  • The Ethernet card must be placed in promiscuous mode.
  • It must be placed on a single virtual LAN interface.

Questão 38

Questão
Which of the following firewall rules only denies DNS zone transfers?
Responda
  • deny udp any any port 53
  • deny ip any any
  • deny tcp any any port 53
  • deny all dns packets

Questão 39

Questão
Which of the following technologies can store multi-tenant data with different security requirements?
Responda
  • Data loss prevention
  • Trusted platform module
  • Hard drive encryption
  • Cloud computing

Questão 40

Questão
Which of the following devices would MOST likely have a DMZ interface?
Responda
  • Firewall
  • Switch
  • Load balancer
  • Proxy

Questão 41

Questão
Which default port number is secure?
Responda
  • 21
  • 22
  • 23
  • 25

Questão 42

Questão
Which should you do so that your wireless signal does not reach all the way out to the parking lot?
Responda
  • Disable SSID broadcasting
  • Turn off MAC filtering
  • Lower the power level
  • Implement WEP encryption

Questão 43

Questão
Admin Bob took a new WAP out of the box, plugged it in, and walked away. An attacker was able to access the WAP using an administrator account. Which would have prevented the attack?
Responda
  • Configure MAC filtering
  • Disable SSID broadcasting
  • Change the default password
  • Configure 802.1x authentication

Questão 44

Questão
You enter the wireless network information into your computer correctly and connect to the network. You remain connected, but you can't access any resources on the network. Which is the most likely reason?
Responda
  • Mac filtering is turned on
  • The SSID is disabled
  • The encryption is too strong
  • The WAP power level is too low

Questão 45

Questão
Which would allow home users to access internal company resources?
Responda
  • NAT
  • VLANs
  • NAC
  • VPN

Questão 46

Questão
You have two routers connected together, which then connect to two switches, which are also connected together via fiber. How would you prevent unauthorized devices from connecting to the network?
Responda
  • Configure only one of the routers to run DHCP
  • Implement port security on the switches
  • Enable VTP on both switches and set to the same domain
  • Configure each port on the switches to use the same VLAN other than the default one

Questão 47

Questão
Which two would you need to use together to allow telecommuting while keeping it secure?
Responda
  • DMZ
  • VLANs
  • NAC
  • Spam filter
  • VPN concentrator

Questão 48

Questão
Your wireless network is dropping packets and degrading service only during certain times of day. What should be your first troubleshooting step?
Responda
  • Increase the power level
  • Change to a higher gain antenna
  • Perform a site survey
  • Configure stronger encryption

Questão 49

Questão
You look at your router Access Control List and you see that it allows web, email, and SSH traffic. For some reason though, some users are unable to access network printing services. Which could be blocking this?
Responda
  • Port security
  • Flood guards
  • Implicit deny
  • Loop protection

Questão 50

Questão
Your company allows business partners to connect to several of your application servers located at the main office. What can the main office implement to protect the rest of the company from those business partners?
Responda
  • VPN
  • NAC
  • IDS
  • DMZ

Questão 51

Questão
Which protocol provides secure access to log on to a remote server's console to do some maintenance?
Responda
  • SFTP
  • SCP
  • HTTPS
  • SSH

Questão 52

Questão
Which provides a more secure connection than WPA TKIP?
Responda
  • MAC filtering
  • WEP
  • WPA2 CCMP
  • Disable SSID broadcast and increase power levels

Questão 53

Questão
Which solution would scan web traffic for malware and block it if malware is found, and could also block certain websites that are inappropriate?
Responda
  • IDS
  • Firewall
  • UTM
  • ACL

Questão 54

Questão
How do you prevent unauthorized devices from connecting to the network via your network drops?
Responda
  • Mandatory Access Control
  • WPA2
  • Port Security
  • Network Intrusion Pevention

Questão 55

Questão
Which subnet mask would put these 4 PC's on different broadcast domains? PC1 = 10.10.10.4 PC2 = 10.10.10.10 PC3 = 10.10.10.17 PC4 = 10.10.10.26
Responda
  • /24
  • /27
  • /28
  • /29
  • /30

Questão 56

Questão
Choose the port numbers in the proper order to match the order of these protocols: FTP, TFTP, Telnet, HTTP.
Responda
  • 80, 21, 23, 69
  • 21, 69, 23, 80
  • 69, 23, 21, 80
  • 23, 21, 80, 69

Questão 57

Questão
Choose the port numbers in the proper order to match the order of these protocols: HTTPS, SMTP, SNMP, SCP.
Responda
  • 161, 22, 25, 443
  • 443, 161, 22, 25
  • 443, 25, 161, 22
  • 161, 443, 161, 22

Questão 58

Questão
Which of the following should be considered to mitigate data theft when using CAT5 wiring?
Responda
  • CCTV
  • Environmental monitoring
  • Multimode fiber
  • EMI shielding

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