The netstat Command (11.3.5)–Cisco Transport Layer Servicest
Unexplained TCP connections can pose a major security threat. They can indicate that something or someone is connected to the […]
Dense Wavelength Division Multiplexing
Dense Wavelength Division Multiplexing
Port Numbers (11.3)–Cisco Transport Layer Servicest
TCP and UDP use port numbers. Port numbers indicate a network process or service from the perspective of both the
Dense Wavelength Division Multiplexing
TCP and UDP (11.2)–Cisco Transport Layer Servicest
The transport layer includes two protocols: TCP and UDP. TCP is used to deliver messages reliably, whereas UDP is only
Dense Wavelength Division Multiplexing
Objectives–Cisco Transport Layer Servicest
Objectives Upon completion of this chapter, you will be able to do the following: Key Terms This chapter uses the
Dense Wavelength Division Multiplexing
Practice–Cisco IPv4 and IPv6 Address Management
The following activities provide practice with the topics introduced in this chapter. Labs Lab—Identify IPv6 Addresses (10.4.7) Packet Tracer Activities
Dense Wavelength Division Multiplexing
IPv6 Address Representation (10.4.5)–Cisco IPv4 and IPv6 Address Management
It is easy for computers to read the new 128-bit IPv6 addressing. IPv6 just adds more ones and zeros to
Cisco Security Considerations, Dense Wavelength Division Multiplexing
Botnets and Zombies (15.3.5)–Cisco Security Considerations
Another annoying by-product of our increasing reliance on electronic communications is unwanted bulk email. Sometimes merchants do not want to
Cisco Connect to the Internet, Dense Wavelength Division Multiplexing
Security Tools (15.5)–Cisco Security Considerations
Assuming that your device or network will not be the next target of an attack is never wise. Taking protective
Cisco Build a Home Network, Dense Wavelength Division Multiplexing
Patches and Updates (15.5.3)–Cisco Security Considerations
One of the most common methods that a threat actor uses to gain access to hosts or networks is through
Cisco Application Layer Services, Dense Wavelength Division Multiplexing
Additional Safeguards (15.6.5)–Cisco Security Considerations
One of the most common types of spam forwarded is a virus warning. Although some virus warnings sent via email