CCNA 1 Chapter 7
Select the correct choice for each of the following questions and score a perfect!
- 1.
Why is IEEE 802.11 wireless technology able to transmit further distances than Bluetooth technology?
- A.
Transmits at much lower frequencies
- B.
Has higher power output
- C.
Transmits at much higher frequencies
- D.
Uses better encryption methods
Correct Answer
B. Has higher power outputExplanation
IEEE 802.11 wireless technology is able to transmit further distances than Bluetooth technology because it has a higher power output. This means that it can transmit signals with more strength and reach longer distances compared to Bluetooth, which has a lower power output.Rate this question:
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- 2.
What are three advantages of wireless over wired technology? (Choose three.)
- A.
More secure
- B.
Longer range
- C.
Anytime, anywhere connectivity
- D.
Easy and inexpensive to install
- E.
Ease of using licensed air space
- F.
Ease of adding additional devices
Correct Answer(s)
C. Anytime, anywhere connectivity
D. Easy and inexpensive to install
F. Ease of adding additional devicesExplanation
Wireless technology offers anytime, anywhere connectivity, allowing users to access the internet or network from any location within the range of the wireless signal. It is also easy and inexpensive to install, as there is no need for extensive wiring or infrastructure. Additionally, wireless technology allows for the ease of adding additional devices to the network without the need for physical connections.Rate this question:
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- 3.
What are two benefits of wireless networking over wired networking? (Choose two.)
- A.
Speed
- B.
Security
- C.
Mobility
- D.
Reduced installation time
- E.
Allows users to share more resources
- F.
Not susceptible to interference from other devices
Correct Answer(s)
C. Mobility
D. Reduced installation timeExplanation
Wireless networking offers the benefit of mobility, allowing users to connect to the network from anywhere within range without the need for physical cables. This allows for greater flexibility and convenience. Additionally, wireless networking reduces installation time as there is no need to run cables through walls or ceilings, making it easier and quicker to set up a network.Rate this question:
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- 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.)
- A.
The size of the building
- B.
The number of solid interior walls in the building
- C.
The presence of microwave ovens in several offices
- D.
The encryption method used on the wireless network
- E.
The use of both Windows and Appletalk operating systems
- F.
The use of shortwave or infrared on the AP
Correct Answer(s)
A. The size of the building
B. The number of solid interior walls in the building
C. The presence of microwave ovens in several officesExplanation
The size of the building affects the number of access points needed because larger buildings require more access points to provide adequate coverage. The number of solid interior walls in the building also affects the number of access points needed because these walls can obstruct the wireless signal, requiring additional access points to ensure coverage. The presence of microwave ovens in several offices affects the number of access points needed because microwave ovens can interfere with the wireless signal, necessitating additional access points to overcome the interference.Rate this question:
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- 5.
Why is security so important in wireless networks?
- A.
Wireless networks are typically slower than wired networks
- B.
Televisions and other devices can interfere with wireless signals
- C.
Wireless networks broadcast data over a medium that allows easy access
- D.
Environmental factors such as thunderstorms can affect wireless networks
Correct Answer
C. Wireless networks broadcast data over a medium that allows easy accessExplanation
Wireless networks broadcast data over a medium that allows easy access, which makes them vulnerable to unauthorized access and data breaches. Without proper security measures in place, anyone within range of the network can intercept and manipulate the transmitted data. This can lead to unauthorized access to sensitive information, such as personal data or financial transactions. Therefore, security is crucial in wireless networks to protect the privacy and integrity of the transmitted data and prevent unauthorized access.Rate this question:
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- 6.
What does the Wi-Fi logo indicate about a wireless device?
- A.
IEEE has approved the device
- B.
The device is interoperable with all other wireless standards
- C.
The device is interoperable with other devices of the same standard that also display the Wi-Fi logo
- D.
The device is backwards compatible with all previous wireless standards
Correct Answer
C. The device is interoperable with other devices of the same standard that also display the Wi-Fi logoExplanation
The Wi-Fi logo indicates that the device is interoperable with other devices of the same standard that also display the Wi-Fi logo. This means that the device can connect and communicate with other Wi-Fi enabled devices, ensuring compatibility and seamless integration within a wireless network.Rate this question:
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- 7.
Which statement is true concerning wireless bridges?
- A.
Connects two networks with a wireless link
- B.
Stationary device that connects to a wireless LAN
- C.
Allows wireless clients to connect to a wired network
- D.
Increases the strength of a wireless signal
Correct Answer
A. Connects two networks with a wireless linkExplanation
A wireless bridge is a device that connects two separate networks by creating a wireless link between them. This allows for seamless communication and data transfer between the two networks without the need for physical cables. It acts as a bridge, extending the network connectivity beyond the limitations of wired connections. Therefore, the statement "connects two networks with a wireless link" is true concerning wireless bridges.Rate this question:
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- 8.
Which WLAN component is commonly referred to as an STA?
- A.
Cell
- B.
Antenna
- C.
Access point
- D.
Wireless bridge
- E.
Wireless client
Correct Answer
E. Wireless clientExplanation
A WLAN component that is commonly referred to as an STA is a wireless client. A wireless client is a device that connects to a wireless network and is able to send and receive data. It can be a laptop, smartphone, or any other device that has Wi-Fi capabilities and can connect to an access point to access the network.Rate this question:
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- 9.
Which statement is true concerning an ad-hoc wireless network?
- A.
Created by connecting wireless clients in a peer-to-peer network
- B.
Created by connecting wireless clients to a single, centralized AP
- C.
Created by connecting multiple wireless basic service sets through a distribution system
- D.
Created by connecting wireless clients to a wired network using an ISR
Correct Answer
A. Created by connecting wireless clients in a peer-to-peer networkExplanation
An ad-hoc wireless network is created by connecting wireless clients in a peer-to-peer network. In this type of network, each device acts as both a client and an access point, allowing them to communicate directly with each other without the need for a centralized access point or a wired network connection. This allows for a decentralized network where devices can easily connect and communicate with each other without relying on a central infrastructure.Rate this question:
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- 10.
Refer to the graphic. In the Wireless menu option of a Linksys integrated router, what does the Network Mode option Mixed mean?
- A.
The router supports encryption and authentication
- B.
The router supports both wired and wireless connections
- C.
The router supports 802.11b, 802.11g, and 802.11n devices
- D.
The router supports connectivity through infrared and radio frequencies
Correct Answer
C. The router supports 802.11b, 802.11g, and 802.11n devicesExplanation
The Network Mode option "Mixed" in the Wireless menu of a Linksys integrated router means that the router supports multiple types of wireless devices, specifically 802.11b, 802.11g, and 802.11n devices. This allows the router to connect to and communicate with devices that operate on these different wireless standards.Rate this question:
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- 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?
- A.
Network Mode
- B.
Network Name (SSID)
- C.
Radio Band
- D.
Wide Channel
- E.
Standard Channel
- F.
SSID Broadcast
Correct Answer
F. SSID BroadcastExplanation
The correct answer is SSID Broadcast. In the Wireless menu of a Linksys integrated router, the configuration option that allows the presence of the access point to be known to nearby clients is the SSID Broadcast. When this option is enabled, the router broadcasts its SSID (Network Name) to nearby devices, making it visible and allowing clients to connect to it.Rate this question:
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- 12.
Which two statements about a service set identifier (SSID) are true? (Choose two.)
- A.
Tells a wireless device to which WLAN it belongs
- B.
Consists of a 32-character string and is not case sensitive
- C.
Responsible for determining the signal strength
- D.
All wireless devices on the same WLAN must have the same SSID
- E.
Used to encrypt data sent across the wireless network
Correct Answer(s)
A. Tells a wireless device to which WLAN it belongs
D. All wireless devices on the same WLAN must have the same SSIDExplanation
The service set identifier (SSID) is used to tell a wireless device to which WLAN it belongs. It acts as a unique identifier for a wireless network. Additionally, all wireless devices on the same WLAN must have the same SSID in order to connect and communicate with each other effectively.Rate this question:
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- 13.
Which two statements characterize wireless network security? (Choose two.)
- A.
Wireless networks offer the same security features as wired networks
- B.
Wardriving enhances security of wireless networks
- C.
With SSID broadcast disabled, an attacker must know the SSID to connect.
- D.
Using the default IP address on an access point makes hacking easier
- E.
An attacker needs physical access to at least one network device to launch an attack
Correct Answer(s)
C. With SSID broadcast disabled, an attacker must know the SSID to connect.
D. Using the default IP address on an access point makes hacking easier -
- 14.
What type of authentication does an access point use by default?
- A.
Open
- B.
PSK
- C.
WEP
- D.
EAP
Correct Answer
A. OpenExplanation
An access point uses open authentication by default. Open authentication allows any client device to connect to the access point without requiring any credentials or authentication. This means that anyone within range of the access point can connect to it without providing any security measures. Open authentication is the least secure type of authentication and is typically used in public Wi-Fi networks or in situations where convenience is prioritized over security.Rate this question:
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- 15.
Which statement is true about open authentication when it is enabled on an access point?
- A.
Requires no authentication
- B.
Uses a 64-bit encryption algorithm
- C.
Requires the use of an authentication server
- D.
Requires a mutually agreed upon password
Correct Answer
A. Requires no authenticationExplanation
When open authentication is enabled on an access point, it means that no authentication is required for devices to connect to the network. This means that anyone within range of the access point can connect to it without providing any credentials or passwords. This can be useful in certain scenarios where quick and easy access is desired, but it also poses security risks as anyone can potentially connect to the network.Rate this question:
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- 16.
What are two authentication methods that an access point could use? (Choose two.)
- A.
WEP
- B.
WPA
- C.
EAP
- D.
ASCII
- E.
Pre-shared keys
Correct Answer(s)
C. EAP
E. Pre-shared keysExplanation
The access point could use two authentication methods: EAP and pre-shared keys. EAP (Extensible Authentication Protocol) is an authentication framework that supports various methods such as EAP-TLS, EAP-TTLS, and PEAP. Pre-shared keys, on the other hand, are passwords or passphrases that are shared between the client and the access point for authentication. Both of these methods can be used to verify the identity of the client and allow access to the network.Rate this question:
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- 17.
What is the difference between using open authentication and pre-shared keys?
- A.
Open authentication requires a password. Pre-shared keys do not require a password.
- B.
Open authentication is used with wireless networks. Pre-shared keys are used with wired networks.
- C.
Pre-shared keys require an encrypted secret word. Open authentication does not require a secret word
- D.
Pre-shared keys require a MAC address programmed into the access point. Open authentication does not require this programming.
Correct Answer
C. Pre-shared keys require an encrypted secret word. Open authentication does not require a secret wordExplanation
The difference between using open authentication and pre-shared keys is that pre-shared keys require an encrypted secret word, while open authentication does not require a secret word. Open authentication is a method of authentication that does not require any form of password or secret word, whereas pre-shared keys rely on a secret word that is encrypted and shared between the parties involved in the authentication process.Rate this question:
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- 18.
What term describes the encoding of wireless data to prevent intercepted data from being read by a hacker?
- A.
Address filtering
- B.
Authentication
- C.
Broadcasting
- D.
Encryption
- E.
Passphrase encoding
Correct Answer
D. EncryptionExplanation
Encryption is the process of encoding wireless data in such a way that it becomes unreadable to hackers who might intercept it. It ensures the confidentiality and security of the transmitted data by converting it into a form that can only be understood by authorized parties who possess the decryption key. This prevents hackers from accessing and reading the intercepted data, thereby protecting sensitive information from being compromised.Rate this question:
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- 19.
What access-point feature allows a network administrator to define what type of data can enter the wireless network?
- A.
Encryption
- B.
Hacking block
- C.
Traffic filtering
- D.
MAC address filtering
- E.
Authentication
Correct Answer
C. Traffic filteringExplanation
Traffic filtering is the access-point feature that allows a network administrator to define what type of data can enter the wireless network. This feature enables the administrator to control and restrict the flow of data based on specific criteria such as protocols, ports, or IP addresses. By implementing traffic filtering, the administrator can enhance network security by blocking potentially harmful or unauthorized traffic from entering the network.Rate this question:
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- 20.
What are the two WEP key lengths? (Choose two.)
- A.
8 bit
- B.
16 bit
- C.
32 bit
- D.
64 bit
- E.
128 bit
Correct Answer(s)
D. 64 bit
E. 128 bitExplanation
The two WEP key lengths are 64 bit and 128 bit. WEP (Wired Equivalent Privacy) is a security protocol used to secure wireless networks. The key length refers to the number of bits used to generate the encryption key. In this case, both 64 bit and 128 bit are valid options for WEP key lengths.Rate this question:
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- 21.
Complete the following sentence: WEP is used to ______ , and EAP is used to _____ wireless networks.
- A.
Encrypt; authenticate users on
- B.
Filter traffic; select the operating frequency for
- C.
Identify the wireless network; compress data on
- D.
Create the smallest wireless network; limit the number of users on
Correct Answer
A. Encrypt; authenticate users onExplanation
WEP (Wired Equivalent Privacy) is a security protocol used to encrypt data transmitted over wireless networks, providing confidentiality and preventing unauthorized access. On the other hand, EAP (Extensible Authentication Protocol) is used to authenticate users on wireless networks, verifying their identity and ensuring that only authorized users can access the network.Rate this question:
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