CCNA Discovery 1 Module 7 Exam Answers

CCNA Discovery 1 Module 7 Exam Answers

1. Why is IEEE 802.11 wireless technology able to transmit further distances than Bluetooth technology?
• transmits at much lower frequencies
• has higher power output
• transmits at much higher frequencies
• uses better encryption methods
Jawaban:
Has higher power output

2. What are three advantages of wireless over wired technology? (Choose three.)
• more secure
• longer range
• anytime, anywhere connectivity
• easy and inexpensive to install
• ease of using licensed air space
• ease of adding additional devices
Jawaban:
- anytime, anywhere connectivity
- easy and inexpensive to install
- ease of adding additional devices


3. What are two benefits of wireless networking over wired networking? (Choose two.)
• speed
• security
• mobility
• reduced installation time
• allows users to share more resources
• not susceptible to interference from other devices
Jawaban:
- security
- mobility

4. A technician has been asked to provide wireless connectivity to the wired Ethernet network of a building. Which three factors affect the number of access points needed? (Choose three.)
• the size of the building
• the number of solid interior walls in the building
• the presence of microwave ovens in several offices
• the encryption method used on the wireless network
• the use of both Windows and Appletalk operating systems
• the use of shortwave or infrared on the AP
jawaban;
- the size of the building
- the number of solid interior walls in the building
- the presence of microwave ovens in several offices

5. Why is security so important in wireless networks?
• Wireless networks are typically slower than wired networks.
• Televisions and other devices can interfere with wireless signals.
• Wireless networks broadcast data over a medium that allows easy access.
• Environmental factors such as thunderstorms can affect wireless networks.
jawaban:
Wireless networks broadcast data over a medium that allows easy access

6. What does the Wi-Fi logo indicate about a wireless device?
• IEEE has approved the device.
• The device is interoperable with all other wireless standards.
• The device is interoperable with other devices of the same standard that also display the Wi-Fi logo.
• The device is backwards compatible with all previous wireless standards.
Jawaban:
The device is interoperable with other devices of the same standard that also display the Wi-Fi logo.

7. Which statement is true concerning wireless bridges?
• connects two networks with a wireless link
• stationary device that connects to a wireless LAN
• allows wireless clients to connect to a wired network
• increases the strength of a wireless signal
Jawaban:
connects two networks with a wireless link

8. Which WLAN component is commonly referred to as an STA?
• cell
• antenna
• access point
• wireless bridge
• wireless client
Jawaban:
wireless client

9. Which statement is true concerning an ad-hoc wireless network?
• created by connecting wireless clients in a peer-to-peer network
• created by connecting wireless clients to a single, centralized AP
• created by connecting multiple wireless basic service sets through a distribution system
• created by connecting wireless clients to a wired network using an ISR
Jawaban:
created by connecting wireless clients in a peer-to-peer network

10. Refer to the graphic. In the Wireless menu option of a Linksys integrated router, what does the Network Mode option Mixed mean?
• The router supports encryption and authentication.
• The router supports both wired and wireless connections.
• The router supports 802.11b, 802.11g, and 802.11n devices.
• The router supports connectivity through infrared and radio frequencies.
bonus

11. Refer to the graphic. In the Wireless menu of a Linksys integrated router, what configuration option allows the presence of the access point to be known to nearby clients?
• Network Mode
• Network Name (SSID)
• Radio Band
• Wide Channel
• Standard Channel
• SSID Broadcast
bonus

12. Which two statements about a service set identifier (SSID) are true? (Choose two.)
• tells a wireless device to which WLAN it belongs
• consists of a 32-character string and is not case sensitive
• responsible for determining the signal strength
• all wireless devices on the same WLAN must have the same SSID
• used to encrypt data sent across the wireless network
Jawab:
- tells a wireless device to which WLAN it belongs
- all wireless devices on the same WLAN must have the same SSID

13. Which two statements characterize wireless network security? (Choose two.)
• Wireless networks offer the same security features as wired networks.
• Wardriving enhances security of wireless networks.
• With SSID broadcast disabled, an attacker must know the SSID to connect.
• Using the default IP address on an access point makes hacking easier.
• An attacker needs physical access to at least one network device to launch an attack.
Jawaban:
- With SSID broadcast disabled, an attacker must know the SSID to connect
- Using the default IP address on an access point makes hacking easier.

14. What type of authentication does an access point use by default?
• Open
• PSK
• WEP
• EAP
Jawaban:
- PSK
15. Which statement is true about open authentication when it is enabled on an access point?
• requires no authentication
• uses a 64-bit encryption algorithm
• requires the use of an authentication server
• requires a mutually agreed upon password
Jawaban:
requires a mutually agreed upon password

16. What are two authentication methods that an access point could use? (Choose two.)
• WEP
• WPA
• EAP
• ASCII
• pre-shared keys
Jawaban:
- WEP
- EAP


17. What is the difference between using open authentication and pre-shared keys?
• Open authentication requires a password. Pre-shared keys do not require a password.
• Open authentication is used with wireless networks. Pre-shared keys are used with wired networks.
• Pre-shared keys require an encrypted secret word. Open authentication does not require a secret word.
• Pre-shared keys require a MAC address programmed into the access point. Open authentication does not require this programming.
Jawaban:
Pre-shared keys require an encrypted secret word. Open authentication does not require a secret word.

18. What term describes the encoding of wireless data to prevent intercepted data from being read by a hacker?
• address filtering
• authentication
• broadcasting
• encryption
• passphrase encoding
Jawaban:
encryption

19. What access-point feature allows a network administrator to define what type of data can enter the wireless network?
• encryption
• hacking block
• traffic filtering
• MAC address filtering
• authentication
Jawaban:
traffic filtering

20. What are the two WEP key lengths? (Choose two.)
• 8 bit
• 16 bit
• 32 bit
• 64 bit
• 128 bit
jawaban:
- 64 bit
- 128 bit

21. Complete the following sentence: WEP is used to ______ , and EAP is used to _____ wireless networks.
• encrypt; authenticate users on
• filter traffic; select the operating frequency for
• identify the wireless network; compress data on
• create the smallest wireless network; limit the number of users on
Jawaban:
encrypt; authenticate users on