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If the data access layer supports multiple database types, the application becomes able to use whatever databases the DAL can talk to. In either circumstance, having a data access layer provides a centralized location for all calls into the database, and thus makes it easier to port the application to other database systems (assuming that 100% ...
The services and protocols specified in IEEE 802 map to the lower two layers (data link and physical) of the seven-layer Open Systems Interconnection (OSI) networking reference model. IEEE 802 divides the OSI data link layer into two sub-layers: logical link control (LLC) and medium access control (MAC), as follows: Data link layer. LLC sublayer
The HR function consists of tracking existing employee data, which traditionally includes personal histories, skills, capabilities, accomplishments, and salary. To reduce the manual workload of these administrative activities, organizations began to electronically automate many of these processes by introducing specialized human resource ...
The University for International Integration of the Afro-Brazilian Lusophony [2] (Portuguese: Universidade da Integração Internacional da Lusofonia Afro-Brasileira, UNILAB) is a public federal university located in Redenção, Ceará, Brazil. [3] The city was chosen because it was the first Brazilian city to abolish slavery.
The aggregate layer switches interconnect together multiple access layer switches. All of the aggregate layer switches are connected to each other by core layer switches. Core layer switches are also responsible for connecting the data center to the Internet. The three-tier is the common network architecture used in data centers. [10]
Unilab, Inc., commonly known as Unilab (stylized in all caps), is a Philippine pharmaceutical company headquartered in Mandaluyong, Metro Manila. [1] It specializes in a wide range of consumer healthcare products such as prescription and over-the counter medications, vitamins and food supplements, and biotechnology .
In the IEEE 802 reference model of computer networking, the logical link control (LLC) data communication protocol layer is the upper sublayer of the data link layer (layer 2) of the seven-layer OSI model. The LLC sublayer acts as an interface between the medium access control (MAC) sublayer and the network layer.
The virtual access layer (VAL) [1] refers to the virtualization of the access layer that connects servers to the network in the data center. Server virtualization is now aggressively deployed in data centers for the consolidation of applications hosted on x86 servers. However, the underlying limitations in current networks prevent organizations ...